Difference between revisions of "Main Page"

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[[Image:Coordinates.png|thumb|301 px|[[The Algorithm]], as shown in [[xkcd]] [http://www.xkcd.com/426/ comic #426].]]
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__NOTOC__
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= The Adventure Starts Here =
  
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[[Image:Portland Sample Coord.png|thumb|222 px|Use [http://xkcd.com/geohashing this tool] to find geohashing coordinates for a given area/date.]]
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'''[[Geohashing]] is a global game of spontaneous adventure generation with over 17,000 expeditions since 2008.''' You will explore random locations, meet fellow geohashers, brave the elements, unlock [[Achievements|achievements]], and then come back here to '''[[expedition|document your expedition]]'''.
  
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[[Image:Noterminal portland sample_2.jpg|thumb|222 px|[[User:NoTerminal|NoTerminal]] and [[User:Drache|Drache]] at the [[2008-02-19 45 -122|February 19, 2008 coordinates]] for Portland, Oregon]]
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[[Image:Flag of Catalonia.png|15px]] [[Pàgina Principal|Català]] - [[Image:Flag of Germany.png|15px]] [[Hauptseite|Deutsch]] - [[Image:Flag of Spain.png|15px]] [[Image:Flag of Mexico.png|15px]] [[Image:Flag of Chile.png|15px]] [[Página Principal|Español]] - [[Image:Flag_of_France.png|15px]] [[Accueil|Français]] - [[Image:Flag of Italy.png|15px]] [[Pagina Principale|Italiano]] - [[File:Flag of Poland.png|15px]] [[Strona główna|Polski]] - [[Image:800px-Flag of Sweden.png|15px]] [[Huvudsida|Svenska]] - [[geohashing:translation|other languages]].{{QUOTER}}
  
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Welcome to the '''Geohashing Community Wiki'''. [[Geohashing]] is a ''Spontaneous Adventure Generator'', brought to you by the [[xkcd]] webcomic. If you are already familiar with GPS and xkcd, then proceed onwards!
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[[Image:Coordinates.png|thumb|400px|[[The Algorithm]] was invented for [[xkcd]] [http://www.xkcd.com/426/ comic #426], published on 21 May 2008.]]
  
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== What is this? ==
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== How to play? ==
  
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[[xkcd]] [http://www.xkcd.com/426/ comic #426], published on May 21, 2008, contains an [[algorithm]] that generates random coordinates around the world<sup>1</sup> every day.  Everyone in a given [[Graticule|region]] gets the same set of coordinates.  As such, these coordinates can be used as destinations for adventures, ''à la'' [http://en.wikipedia.org/wiki/Geocaching Geocaching], or for local meetups.
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# Get '''[https://geohashing.info/ today's coordinates]''' with a [[Geohashing:Coordinate_calculators|coordinate calculator]]
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# '''[[A beginner's guide|Go there]]''' (or as close as you safely and legally can)
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# '''[[Special:UserLogin|Create an account]]''' <small>(Returning after a break? All accounts created before 2020-02-02 [[Dark Ages|were deleted]]; you'll need to sign up again)</small>
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# '''[[Expedition|Write about]]''' your expedition!
  
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For a little more interactive discussion, consider joining [irc://irc.foonetic.net/geohashing the #geohashing IRC channel] on Foonetic.
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== How does Geohashing work? ==
 +
Everyday, an [[algorithm]] generates a random coordinate from stock market data. That coordinate can be applied to every 1°×1° latitude/longitude ''[[graticule]]'' in the world, giving a point that might be in a field, a forest, a city, or even [[Water Geohash|out at sea]]! Everyone in the world gets the same set of coordinates relative to their graticule.
  
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<small>1. For time zone issues in Europe, Africa, Asia, and Australia, see [[30W Time Zone Rule]] for an addendum to the algorithm rules.</small>
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Each day, people try to get their nearest generated coordinate, for an adventure, to discover somewhere new, or to meet up with other geohashers. Afterwards, you can '''[[expedition|document your expedition]]'''. The rest of us would love to read your story, see your photos, and cheer your success (or commiserate with your [[Achievements#Consolation_Prizes | failure]])! Join the other 'spot spotters', be out standing in your field and use this wiki to document the daily coordinates (geohashes) you’ve been to or tried to reach.
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<!-- LEAVE THIS FOOTNOTE HERE UNTIL AT LEAST 2008-06-02 -->
 
  
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== How it works ==
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Each day there is also a single [[globalhash]] somewhere on Earth: rare, valued and much harder to reach.
  
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'''Play with the coordinate calculator at [http://xkcd.com/geohashing http://xkcd.com/geohashing].'''  All coordinates refer to the [[wikipedia:WGS84|WGS84]] datum.
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{{Getting started}}
  
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Every day, the [[algorithm]] generates a new set of coordinates for each 1°×1° latitude/longitude zone (known as a [[graticule]]) in the world.  They are randomly placed -- they could be in the forest, in a city, on a mountain, or even in the middle of a lake!  You can use this wiki to document the daily coordinates (geohashes) you've been to.
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{{New on the wiki}}
  
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Unless you can accurately predict the [[DJIA|stock market]], you can't figure out what the coordinates will be ahead of time.  You can first calculate a weekday's coordinates at about 9:30am [[ET]], and on Friday morning you can calculate the coordinates for each day that weekend (sometimes even through Monday when there is a US holiday).
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== Official xkcd meetups ==
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{{:Saturday meetup}}
  
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When visiting geohash locations, please [[geotrashing|respect the area]] you are visiting. Absolutely do not litter or otherwise disturb the natural integrity of the area.  However, if possible, creating some kind of a marker out of nearby materials (i.e. cairn of stones, blair-witch-style 'stick figures', etc.) is encouraged.
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== Gallery of recent expeditions ==
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Every expedition should have one photo in that day's gallery, selected manually. Please add yours with the "add" link. If that day's gallery hasn't been started yet, please start it.
  
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{{disclaimer}}
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* [[Template:Expedition Images2/How-to|How to add your own expedition photos.]]
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* [{{fullurl:{{FULLPAGENAME}}|action=purge}} Refresh the cache] (if your image doesn't show up)
  
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=== Official xkcd meetups ===
 
  
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Official [[xkcd]] meetups happen every Saturday afternoon at that day's normal geohash coordinates.  All meetups start at 4:00pm (local destination time).  If you go at these times, you might encounter other readers of xkcd.  Bring games!
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<!-- AUTOMATED BY User:relet.  Direct comments/questions/complaints about the automation process or the new gallery format to his user talk, or visit [[Template:Recent Images2]] -->
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{{Recent Images2}}
  
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In such cases when it is unwise to attempt to access the generated coordinates, the [[Saturday meetup]] is postponed until a day when the algorithm provides a more suitable location.  Alternatively, when the coordinates fall within a body of water, you can rent a boat and win the [[Water Geohash]] achievement.
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== Recent and Upcoming Coordinates ==
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<!--
  
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== Active Graticules ==
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THIS SECTION HAS BEEN COMPLETELY AUTOMATED BY User:Tjtrumpet2323. LEAVE MESSAGES ON HIS TALK PAGE WITH CONCERNS.
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Want to find geohashers in your local area? See [[Active Graticules]] for a list of graticules with active users in them.
 
  
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An interactive map is available for [[http://irc.peeron.com/xkcd/map/data/graticule.kml Google Earth]] or on [[http://maps.google.com/maps?f=q&hl=en&geocode=&q=http:%2F%2Firc.peeron.com%2Fxkcd%2Fmap%2Fdata%2Fgraticule.kml&ie=UTF8&ll=42.811522,-71.773682&spn=6.051885,9.733887&z=7 Google Maps]].
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-->{{Next Saturday}}
  
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== Implementations ==
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* {{Coordinates list}}
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* {{Expedition archive recent}}
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A full list of reference and practical implementations can be found on the [[Implementations]] page.
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{{disclaimer}}
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== Recent and Upcoming Expeditions ==  <!--  RECOMMENDED THAT EIGHT DAYS BE KEPT HERE ONCE WE GET GOING; JUST NEEDED SOMETHING TO ARCHIVE  -->
 
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The coordinates for the [[Saturday meetup]] on '''May 31, 2008''' will be based on the [[Dow]]'s opening price at 9:30am [[ET]] on Friday, May 30.  See [http://www.timeanddate.com/worldclock/fixedtime.html?month=5&day=30&year=2008&hour=9&min=30&sec=0&p1=179 timeanddate.com] to convert this time to your local time zone.
 
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{{30w}}  <!--  LEAVE {{30w}} UP THROUGH 2008-06-02 TO GIVE PEOPLE A WEEK TO NOTICE  -->
 
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=== {{date link|2008-05-27}} ===
 
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'''The first day the [[30W Time Zone Rule]] is in effect.'''
 
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* '''West of [[-30°]]:''' The coordinates will be announced at 9:30am [[ET]] on Tuesday, May 27.
 
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* '''East of -30°:''' The coordinates for Tuesday, May 27 are available.  They were available early by combination of the [[DJIA|Dow]]'s [http://www.nyse.com/about/newsevents/1176373643795.html?sa_campaign=/internal_ads/callouts/holidays Memorial Day] holiday and the new [[30W Time Zone Rule]].
 
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=== {{date link|2008-05-26}} ===
 
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The coordinates for Monday, May 26 are available.  They were available early due to the [[DJIA|Dow]]'s [http://www.nyse.com/about/newsevents/1176373643795.html?sa_campaign=/internal_ads/callouts/holidays Memorial Day] holiday.
 
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=== {{date link|2008-05-25}} ===
 
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The coordinates for Sunday, May 25 are available.
 
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=== {{date link|2008-05-24}} - [[Saturday meetup]] ===
 
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'''The first [[Saturday meetup]] day since [[Geohashing]] publicly launched.'''
 
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The coordinates for Saturday, May 24 are available. Convenient city graticules in the U.S. include: Madison, San Antonio, Cleveland, Portland, Rochester and Baltimore.
 
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* [[2008-05-24 47 7|2008-05-24 Zug, Switzerland]] -- [[User:Adi|Adi]] Reached at about 16.20 local time.
 
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* [[2008-05-24 -43 172|2008-05-24 Christchurch, New Zealand]] -- [[User:Phire|Phire]] Failed to reach this geohash, and had to be rescued by the police.
 
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* [[2008-05-24 -35 148|2008-05-24 Canberra (West), Australia]] -- Missed by miles by [[User:Polysylabic_Pseudonym|Psud (Adam)]] and Chris. Psud trying again another day. Brewing beer 2008-05-25.
 
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* [[2008-05-24 -35 138|2008-05-24 Adelaide (South), Australia]] -- Successfully reached suburban location.
 
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* [[2008-05-24 -28 152|2008-05-24 Brisbane (Southwest), Australia]] -- Successfully reached.
 
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* [[2008-05-24 53 6|2008-05-24 Eelde, The Netherlands]] -- Successfully reached after grueling hike of about 200 metres through a meadow.
 
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* [[2008-05-24 51 -0|2008-05-24 London West, United Kingdom]] - Kira reached this point with [[User:Hello1024|Oliver]], Kit and [[User:James|James]]. Updating wiki from actual spot :)
 
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* [[2008-05-24 60 24|2008-05-24 Helsinki, Finland]] -- Successfully reached.
 
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* [[2008-05-24_48_11|2008-05-24 Munich, Germany]] -- Split-double-wrong achievement!
 
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* [[2008-05-24_52_-1|2008-05-24 Birmingham East, United Kingdom]] - Successfully reached field of cows.
 
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* [[2008-05-24_54_-2|2008-05-24 Carlisle, United Kingdom]] - Three groups met up while independently reaching another field of cows.
 
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* [[2008-05-24_54_-1|2008-05-24 Middlesbrough, United Kingdom]] - Ajtag Missed, getting close then gps ran out of batteries.
 
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* [[2008-05-24 52 4|2008-05-24 Hazerswoude, The Netherlands]] - Reached.
 
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* [[2008-05-24 48 2|2008-05-24 Paris, France]] - Successfully reached, although there didn't seem to be anyone else there :-( Actually it seems that I messed something up with the coordinates...
 
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* [[2008-05-24 39 -76|2008-05-24 Baltimore, Maryland, USA]] - Nearly reached by [[User:Avagara|Avagara]] and four others, but location was in a private home and access was not allowed by homeowner.
 
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* [[2008-05-24 39 -77|2008-05-24 Frederick, Maryland, USA]] - Successfully reached by [[User:Ciel|Dan]], Kyle, David, and Jillian.
 
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* [[2008-05-24_52_13|2008-05-24 Berlin, Germany]] - Missed - one person tried and messed something up with the geography...
 
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* [[2008-05-24_53_-1|2008-05-24 Sheffield, UK]] - Successfully reached on 55 mile cycle trip.
 
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* [[2008-05-24 38 -78|2008-05-24 Shenandoah Valley, Virginia, USA]] - Reached, but alone.
 
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* [[2008-05-24 48 16|2008-05-24 Vienna, Austria]] - Meeting point was inside the airport territory. Had to stop 50m away.
 
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* [[2008-05-24 49 -97|2008-05-24 Winnipeg, Manitoba, Canada]] - Reached, sat under a shelterbelt tree for half an hour all by myself.
 
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* [[2008-05-24 43 -78|2008-05-24 Lockport, New York, USA]] - Reached the roadside 500 feet from the area; it was someone's back lawn. Waited 'till 4:30 listening to Dethklok, but nobody else showed.
 
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* [[2008-05-24 34 -117|2008-05-24 Rancho Cucamonga, California, USA]] - Reached
 
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* [[2008-05-24 41 -93|2008-05-24 Des Moines, Iowa, USA]] - Nearly reached, alone
 
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* [[2008-05-24 29 -95|2008-05-24 Houston, Texas, USA]] - Sucessfully Reached, 4 People showed up.
 
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* [[2008-05-24 33 -84|2008-05-24 Atlanta, Geogia, USA]] -- [[User:Musiqua|Monica]] Reached this spot at about 4:30 EST with Andy and Eric with only minimal trespassing upon a logging/hunting ground involved. Subsequently met a very nice guy named Chris.
 
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* [[2008-05-24 42 -91|2008-05-24 Cedar Rapids, Iowa, USA]] - Meeting point was well inside private farmland with no direct access.  [[User:Nfomi|Nfomi]] settled for a drive-by.
 
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* [[2008-05-24 38 -121|2008-05-24 Sacramento, California, USA]] - Meeting point was well inside private farmland, and I decided to be good too. Settled for a picture.
 
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* [[2008-05-24 42 - 76|2008-05-24 Ithaca, New York, USA]] - Two of us got as close as we could by car, didn't have a handheld GPS receiver.  Arrived ~4:15 pm EST, saw no one else, but had a lovely drive and bought some delicious strawberry rhubarb pie at a farmstand.
 
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* [[2008-05-24 34 -118|2008-05-24 Los Angeles, California, USA]] - [[User:Darcy|Darcy]] (with mother and dog in tow) and seven others (who can add their own names if desired) got within about 250 feet of the meeting point by a bit after 5pm and took pictures.
 
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* [[2008-05-24 41 -88|2008-05-24 Aurora, Illinois, USA]] - Side of a road, no one there. Took pictures.
 
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* [[2008-05-24 42 -71|2008-05-24 Boston, MA, USA]] - About 40 people, despite bad suburban location found park, played Frisbee, went for pizza, played various games, stayed until after sundown.  Pictures forthcoming.
 
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* [[2008-05-24 -23 -46|2008-05-24 Atibaia, São Paulo, Brazil]] - We two almost reached the spot. Was in a private property. Talked to owners but did not enter. Played chess. Placed xkcd signs. Took very geek photos (coming soon)
 
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* [[2008-05-24 36 -86|2008-05-24 Nashville, Tennessee, USA]] - Got close. Location was in a fenced-in field. Went and saw the new Indy movie at a nearby theater.
 
  
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=== {{date link|2008-05-23}} ===
 
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The coordinates for Friday, May 23 are available.
 
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* [[2008-05-23 42 -88|2008-05-23 Schaumburg, Illinois]] -- First reached by [[User:Top Quark|Virginia]].
 
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* [[2008-05-23 42 -71|2008-05-23 Boston, Massachusetts]] -- First reached by [[User:xkcd|Randall]], davean, and Tesia.
 
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* [[2008-05-23 30 -97|2008-05-23 Austin, Texas]] -- Reached by [[User:Sigma|Sigma]].
 
  
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=== {{date link|2008-05-22}} ===
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{{Recent expeditions}}
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The coordinates for Thursday, May 22 are available.
 
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* [[2008-05-22 39 -105|2008-05-22 Denver, Colorado]] -- This geohash has been reached by [[User:Akedrou|Akedrou]].
 
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* [[2008-05-22 32 -117|2008-05-22 San Diego, California]] -- This coordinate was reached by [[User:Somnivore|Somnivore]].
 
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* [[2008-05-22 42 -89|2008-05-22 Stoughton, Wisconsin]] -- This geohash was reached by [[User:Alric|Alric]].
 
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* [[2008-05-22 40 -96|2008-05-22 Lincoln, Nebraska]] -- This geohash was reached by [[User:Spike|Spike]] and crew.
 
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* [[2008-05-22 44 -93|2008-05-22 Southern Minneapolis, Minnesota]] -- This geohash was reached by [[User:ironiridis|Chris]] and [[User:Springbok|Abi]].
 
  
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=== Older Events ===
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==Recent non-expeditions==
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{{expedition archive recent}}
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This section documents hash expeditions that geohashers ''wish'' they could make, but have not been able to for the reasons stated.
  
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== Known Issues ==
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[[Recent_non-expeditions#2013|2013]] - [[Recent_non-expeditions#2014|2014]] - [[Recent_non-expeditions#2015|2015]] - [[Recent_non-expeditions#2017|2017]] - [[Recent_non-expeditions#2020|2020]]
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Several known issues are presented at [[Known Issues]].  There is an ongoing discussion on these and other issues at [[Talk:Main Page]].
 
  
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== Related Projects ==
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<!--- Please... Add other heroic non-expeditions anywhere that is appropriate.--->
  
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* [http://geocaching.com Geocaching: Global GPS cache hunt]
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<!--
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* [http://geodashing.gpsgames.org Geodashing: Monthly points, randomly created]
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###### !!! POSTED !!! NO TRESPASSING !!! ##################################
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* [http://www.confluence.org The Degree Confluence Project: visiting every integer latitude/longitude crossing point in the world]
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IF YOU ARE READING THIS (and were hoping to add your expedition picture to the gallery) YOU HAVE TAKEN A WRONG TURN. TRY CLICKING THE 'add' BUTTON NEXT TO THE DAY OF YOUR EXPEDITION IN THE GALLERY.
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* [http://geotude.com Geotude: Numbering the One Degree Graticules]
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Click on the link "Click here to learn how to add your own expedition pictures." above the gallery for more information.
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###### !!! POSTED !!! NO TRESPASSING !!! ##################################
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//-->
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{{#css:
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  #firstHeading { display: none }
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}}

Latest revision as of 18:53, 21 July 2024

The Adventure Starts Here

Geohashing is a global game of spontaneous adventure generation with over 17,000 expeditions since 2008. You will explore random locations, meet fellow geohashers, brave the elements, unlock achievements, and then come back here to document your expedition.

Flag of Catalonia.png Català - Flag of Germany.png Deutsch - Flag of Spain.png Flag of Mexico.png Flag of Chile.png Español - Flag of France.png Français - Flag of Italy.png Italiano - Flag of Poland.png Polski - 800px-Flag of Sweden.png Svenska - other languages.

“
So I failed to reach the hashpoint. I wet my trouser legs by wading through the damp barley. I got covered in clay mud. And I got two lifetime firsts, wildlife spotting. Result!
 ”
find some more great geohashing quotations here.
—Anon
The Algorithm was invented for xkcd comic #426, published on 21 May 2008.

How to play?

  1. Get today's coordinates with a coordinate calculator
  2. Go there (or as close as you safely and legally can)
  3. Create an account (Returning after a break? All accounts created before 2020-02-02 were deleted; you'll need to sign up again)
  4. Write about your expedition!

How does Geohashing work?

Everyday, an algorithm generates a random coordinate from stock market data. That coordinate can be applied to every 1°×1° latitude/longitude graticule in the world, giving a point that might be in a field, a forest, a city, or even out at sea! Everyone in the world gets the same set of coordinates relative to their graticule.

Each day, people try to get their nearest generated coordinate, for an adventure, to discover somewhere new, or to meet up with other geohashers. Afterwards, you can document your expedition. The rest of us would love to read your story, see your photos, and cheer your success (or commiserate with your failure)! Join the other 'spot spotters', be out standing in your field and use this wiki to document the daily coordinates (geohashes) you’ve been to or tried to reach.

Each day there is also a single globalhash somewhere on Earth: rare, valued and much harder to reach.

Learn more

How to geohash:

Other people's expeditions:

Get involved


news archive • Edit What's new on the wiki?

More pages needing discussion • Discussion archive • Edit Now discussing - please join in: 


Official xkcd meetups

Felix Dance, Mdixon4, Rhonda, Lachie and Stevage meet up at the 28 December 2015 (a Monday) coordinates for Bairnsdale, VIC, Australia.

Based on the title text from the comic that established geohashing, the "official" meetup day was interpreted as being Saturday; that is, the day one would have the best chance of meeting others -- see also Mouseover Day. Additionally it was decided through convention that a good meeting time would be 16:00 local time (4:00 P.M.)¹

However, neither of these are hard rules, and they were formulated at a very different early stage in the sport's history. Nowadays and for quite awhile actually, any date or time can be good (or bad, depending on how many other hashers are near you) for meeting up, especially if prearranged. Note that this only applies to that day’s normal local geohash or globalhash coordinates, if you try to go to an alternate location without telling anyone else, it's highly unlikely you'd meet up with a hasher there (obviously).

¹Or earlier if that would be too close to sunset during the winter, or other quirks of temporal tradition; see your local graticule page for consensus there.

Gallery of recent expeditions

Every expedition should have one photo in that day's gallery, selected manually. Please add yours with the "add" link. If that day's gallery hasn't been started yet, please start it.


Recent Expeditions


Recent and Upcoming Coordinates

The coordinates for the next Saturday meetups, scheduled for 9 November 2024, will be based on the Dow’s opening price published at 09:30 EST (14:30 UTC) on Friday 8 November. See timeanddate.com to convert this time to your local time zone.

Disclaimer: When any coordinates generated by the Geohashing algorithm fall within a dangerous area, are inaccessible, or would require illegal trespass, DO NOT attempt to reach them. Please research each potential location before attempting to access it. You are expected to use proper judgment in all cases and are solely responsible for your own actions. See more guidelines.


Expeditions Being Planned

Expeditions and Plans

2024-11-08
Melbourne West, Australia Stevage, John, KT, Pwc, Lachie, Cam, Laura On the edge of Albert Park, just off St Kilda Road.
Taichung, Taiwan Felix Dance In an overgrown floodplain near Hsinchu.
Dresden, Germany Coyotebush On the way, arriving around 14:30. -- Coyotebush (talk) @52.2645,13.6351 1...
Edinburgh, United Kingdom KerrMcF On Scarhill Avenue, Airdrie.

Recent Expeditions

Expeditions and Plans

2024-11-07
Würzburg, Germany Torodeas Somewhere
Utrecht, Netherlands MyrtleGlacy In a Tesla parking lot in Utrecht.

Expeditions and Plans

2024-11-06

Expeditions and Plans

2024-11-05
Minneapolis SW, Minnesota Kyrkazakh Outside the Carlson Towers in Minnetonka, MN.


Recent non-expeditions

This section documents hash expeditions that geohashers wish they could make, but have not been able to for the reasons stated.

2013 - 2014 - 2015 - 2017 - 2020


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