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Welcome to the '''Geohashing Community Wiki'''.  [[Geohashing]] is a ''Spontaneous Adventure Generator'', brought to you by the [[xkcd]] webcomic.
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__NOTOC__
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= The Adventure Starts Here =
  
== What is this? ==
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'''[[Geohashing]] is a game of spontaneous adventure generation played around the world 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]]'''.
[[Image:Coordinates.png|thumb|400px|[[The Algorithm]], as shown in [[xkcd]] [http://www.xkcd.com/426/ comic #426].]]
 
[[xkcd]] [http://www.xkcd.com/426/ comic #426], published on 21 May 2008, contains an [[algorithm]] that generates random coordinates around the world 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.
 
  
For a little more interactive discussion, consider joining [irc://irc.foonetic.net/geohashing the #geohashing IRC channel] on Foonetic.
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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}}
  
__TOC__
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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.]]
[[Image:Portland Sample Coord.png|thumb|250 px|Use [http://xkcd.com/geohashing this tool] to find geohashing coordinates for a given area and date.]]
 
== How it works ==
 
'''Play with the coordinate calculator at [http://xkcd.com/geohashing http://xkcd.com/geohashing].'''  All coordinates refer to the [[wikipedia:WGS84|WGS84]] datum.
 
  
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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== How to play? ==
  
Unless you can accurately predict the [[DJIA|stock market]] down to the penny, 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 you can calculate the coordinates for each day that weekend.
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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!
  
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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== How does Geohashing work? ==
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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.
  
{{disclaimer}}
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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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Each day there is also a single [[globalhash]] somewhere on Earth: rare, valued and much harder to reach.
  
After the fun, why not 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).
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{{Getting started}}
  
=== Really Cool Expeditions ===
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{{New on the wiki}}
Sometimes to know how seriously cool a geohashing expedition was, a picture is insufficient. You may need a thousand words. Please contribute links to the [[Hall of Amazingness]] of "you have '''got''' to see '''this'''!" way cool expeditions that we might otherwise not hear about.
 
  
=== Official xkcd meetups ===
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== Official xkcd meetups ==
 
{{:Saturday meetup}}
 
{{:Saturday meetup}}
  
=== Unofficial invitations ===
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== Gallery of recent expeditions ==
Having a party or board game night or some other activity and will welcome anyone crazy enough to stop by only knowing your coordinates?  Invite them on the [[Unofficial Invitations]]-page and maybe meet some amazing people!
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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.
  
== Active Graticules ==
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* [[Template:Expedition Images2/How-to|How to add your own expedition photos.]]
Want to find geohashers in your local area?  See [[:Category:Active Graticules]] for a list of graticules with active users in them.
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* [{{fullurl:{{FULLPAGENAME}}|action=purge}} Refresh the cache] (if your image doesn't show up)
* Don't see your home area?  Follow the format and create a page for it!  We'd love to have you!
 
* 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].
 
* You can also attach your photos to this [http://maps.google.com/maps/ms?hl=en&ie=UTF8&oe=UTF8&msa=0&msid=102381707694098607871.00044e6104ed42cdc2ff4 Google Maps layer].
 
  
== Implementations ==
 
  
A full list of reference and practical implementations can be found on the [[Implementations]] page.
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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}}
  
 
== Recent and Upcoming Coordinates ==
 
== Recent and Upcoming Coordinates ==
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<!--
  
<!--  THIS AUTOMATICALLY UPDATES ONCE THE DOW OPENS TO GIVE THE NEXT SATURDAY'S COORDS AND REWORDS ITSELF IN THE VICINITY OF A SATURDAY.  CONTACT User:Tjtrumpet2323 WITH CONCERNS. -->
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THIS SECTION HAS BEEN COMPLETELY AUTOMATED BY User:Tjtrumpet2323.  LEAVE MESSAGES ON HIS TALK PAGE WITH CONCERNS.
{{Next Saturday}}
 
  
<!--  RECOMMENDED THAT EIGHT (8) DAYS BE KEPT HERE; LONG-TERM GOAL IS TO AUTOMATE THIS EVENTUALLY --Tjtrumpet2323 (6/5/08 16:16 UTC)  -->
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-->{{Next Saturday}}
<!--  * NOW SEMI-AUTOMATED... I STILL HAVE MORE WORK TO DO, BUT IT'LL BE A PROCESS --Tjtrumpet2323 (7/2/08 04:30 UTC)  -->
 
{| class="wikitable" style="text-align: center; vertical-align: top; border: 3px solid black; border-collapse: collapse; margin: 1em" border="1" cellpadding="2" width="600"
 
!width=20%| Date
 
!width=40%| West of [[30W Time Zone Rule|–30°]]
 
!width=40%| East of –30°
 
|-
 
! {{date link|2008-08-12|D j M Y}}
 
| {{coordinates|2008-08-12}}
 
| {{coordinates|2008-08-12|30w=1}}
 
|-
 
! {{date link|2008-08-11|D j M Y}}
 
| {{coordinates|2008-08-11}}
 
| {{coordinates|2008-08-11|30w=1}}
 
|-
 
! {{date link|2008-08-10|D j M Y}}
 
| colspan=2 | {{coordinates|2008-08-10}}
 
|-
 
! {{date link|2008-08-09|D j M Y}}
 
| colspan=2 | {{coordinates|2008-08-09}}
 
|-
 
! {{date link|2008-08-08|D j M Y}}
 
| {{coordinates|2008-08-08}}
 
| {{coordinates|2008-08-08|30w=1}}
 
|-
 
! {{date link|2008-08-07|D j M Y}}
 
| {{coordinates|2008-08-07}}
 
| {{coordinates|2008-08-07|30w=1}}
 
|-
 
! {{date link|2008-08-06|D j M Y}}
 
| {{coordinates|2008-08-06}}
 
| {{coordinates|2008-08-06|30w=1}}
 
|-
 
! {{date link|2008-08-05|D j M Y}}
 
| {{coordinates|2008-08-05}}
 
| {{coordinates|2008-08-05|30w=1}}
 
|}
 
{{expedition archive recent}}
 
* [{{fullurl:{{FULLPAGENAME}}|action=purge}} Refresh the cache]
 
  
== Gallery of Recent Expeditions ==
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* {{Coordinates list}}
<!-- AUTOMATED BY User:Tjtrumpet2323. -->
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* {{Expedition archive recent}}
{{Recent Images}}
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{{disclaimer}}
== Known Issues ==
 
Several known issues are presented at [[Known Issues]].  There is an ongoing discussion on these and other issues at [[Talk:Main Page]].
 
 
 
== FAQ ==
 
Q: Is there a facebook group for my area?
 
 
 
A: Take a look at the [[Facebook groups]] page.
 
 
 
Q: I tried to use the md5sum from my unix/linux command line and the hash was not the same as the comic. What is the correct command line?
 
 
 
A: You probably forgot the "-n" (echo without a newline).  Try this to match the example:
 
<code>echo -n 2005-05-26-10458.68 | md5sum</code>
 
The md5sum command may be called md5 instead.
 
 
 
Q: What should I bring?
 
 
 
A: See [[What to bring]].
 
 
 
Q: What do I say to puzzled locals?
 
 
 
A: See [[Cover Stories]].
 
 
 
Q: What if I can't access the exact location, but still think others nearby are trying to meet up?
 
 
 
A: See [[Radio Communications]].
 
  
Q: Is it okay to visit a geohash location in a neighbouring graticule instead of the "own" one?
 
  
A: Sure!  There's no rule saying you can't visit other graticules, and in some cases (for example, [[San Francisco, California|San Francisco]]), you would almost have to in order to actually access a hashpoint.  Geohashing is about meeting other people, and it doesn't matter whether you do that here or there.  In fact, finding a new mix of people might be a good thing.  Go ahead and geohash on vacation for all we care!
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== All recent expeditions ==
  
Q: What do I do when I get there?
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[[Geohashing:Current events|List of all recent expeditions, including those without photos.]]
  
A: Poke around, take pictures, have a picnic, and, in general, have fun! The world is an adventure!
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==Recent non-expeditions==
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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.
  
Q: How will Geohashing get me laid?
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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]]
  
A: You never know who you might find when you show up next Saturday.
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<!--- Please... Add other heroic non-expeditions anywhere that is appropriate.--->
  
<!-- Related Sites are in the community portal. Then included back here for Main_Page compatibility. -->
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<!--  
{{Geo Hashing:Community Portal}}
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###### !!! POSTED !!! NO TRESPASSING !!! ##################################
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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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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 23:04, 15 February 2023

The Adventure Starts Here

Geohashing is a game of spontaneous adventure generation played around the world 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.

How barbed is the wire?
find some more great geohashing quotations here.
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 archiveEdit What's new on the wiki?

  • The most active graticule for 2024-04 was 52,7.
  • The Eclipse achievement has been added.
  • The N-in-a-row achievement has been added.
  • The renaming process for the MNIMB, MNB, and Virgin Graticule achievements/consolation prizes is ongoing.

More pages needing discussionDiscussion archiveEdit 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 Saturday meetups on 4 May 2024 are now available. The coordinates for the next Saturday meetups, scheduled for 11 May 2024, will be based on the Dow's opening price published at 09:30 EDT (13:30 UTC) on Friday 10 May. 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.


All recent expeditions

List of all recent expeditions, including those without photos.

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