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(I just had to pull this quote.)
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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 =
  
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== What is this? ==
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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:Coordinates.png|thumb|400px|[[The Algorithm]], as shown in [[xkcd]] [http://www.xkcd.com/426/ comic #426].]]
 
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[[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'' [[wikipedia:Geocaching|Geocaching]], or for local meetups.
 
  
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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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[[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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__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.]]
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[[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.]]
 
  
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== How it works ==
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== How to play? ==
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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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'''iPhone users''' can [http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=284951057&mt=8. download the app from the iTunes store]. (needs iTunes/iPhone)
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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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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 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.
  
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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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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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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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Each day there is also a single [[globalhash]] somewhere on Earth: rare, valued and much harder to reach.
  
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{{disclaimer}}
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{{Getting started}}
  
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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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{{New on the wiki}}
  
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=== Official xkcd meetups ===
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== Official xkcd meetups ==
 
{{:Saturday meetup}}
 
{{:Saturday meetup}}
  
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=== Really Cool Expeditions ===
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== Gallery of recent expeditions ==
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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.
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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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{{quote|right|Then I realised, despite all my whining, my pain and exhaustion, my total lack of any positive thoughts at all, I was enjoying myself. I was having one of the most exhilarating times of my life. I was exploring a place that no one had ever been, seeing things no one had ever seen, pushing my body to its limit for a ridiculously pointless goal and loving every second of it.|[[2008-10-31_-32_138|UnwiseOwl]]}}
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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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=== Achievements ===
 
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Sometimes you need to go above and beyond (or, perhaps, beneath and short of) the call of the GPS receiver to get to your hash. The [[Achievements]] page lists recognized wins (and fails) of geohashing and corresponding awards.
 
  
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== Active Graticules ==
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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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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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{{Recent Images2}}
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* Don't see your home area? Follow the format and create a page for it!  We'd love to have you!
 
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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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== Implementations ==
 
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A full list of reference and practical implementations can be found on the [[Implementations]] page.
 
  
 
== Recent and Upcoming Coordinates ==
 
== Recent and Upcoming Coordinates ==
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* {{Coordinates list}}
 
* {{Coordinates list}}
 
* {{Expedition archive recent}}
 
* {{Expedition archive recent}}
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* [{{fullurl:{{FULLPAGENAME}}|action=purge}} Refresh the cache]
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{{disclaimer}}
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== Gallery of Recent Expeditions ==
 
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The gallery for each day is added to this page automatically, but pictures are selected to the gallery by ''us''. Any geohasher is welcome to add a picture from that day. Just add your image name in the list at the “add yours” link. If the gallery hasn't been started yet, copy the format from the previous day, or [[Template:Expedition Images/How-to|read the how-to]].
 
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<!-- AUTOMATED BY User:Tjtrumpet2323.  Direct comments/questions about the automation process to his user talk, or visit Template:Recent Images. -->
 
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{{Recent Images}}
 
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== Known Issues ==
 
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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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== FAQ ==
 
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'''Q:''' What should I bring?
 
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: '''A:''' See [[What to bring]].
 
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'''Q:''' I don't have a car, how am I supposed to participate in this sport?
 
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:'''A:''' Some of the most avid geohashers don't use cars. Geohashing is suitable for [[Bicycle Geohashes|bicycles]] or by public transit.
 
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'''Q:''' Is it okay to visit a geohash location in a neighbouring graticule instead of my “own” one?
 
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: '''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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'''Q:''' What do I do when I get there?
 
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: '''A:''' Poke around, take pictures, have a picnic, and, in general, have fun! The world is an adventure!
 
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'''Q:''' What do I say to puzzled locals?
 
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: '''A:''' See [[Cover Stories]].
 
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'''Q:''' How will Geohashing get me laid?
 
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: '''A:''' You never know who you might find when you show up next Saturday.
 
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'''Q:''' Is there a Facebook group for my area?
 
  
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: '''A:''' Take a look at the [[Facebook groups]] page.
 
  
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'''Q:''' What if I can't access the exact location, but still think others nearby are trying to meet up?
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{{Recent expeditions}}
  
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: '''A:''' See [[Radio Communications]].
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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.
  
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'''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?
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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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: '''A:''' You probably forgot the “-n” (echo without a newline). Try this to match the example:
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<!--- Please... Add other heroic non-expeditions anywhere that is appropriate.--->
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: <code>echo -n 2005-05-26-10458.68 | md5sum</code>
 
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: The md5sum command may be called md5 instead.
 
  
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<!-- Related Sites are in the community portal. Then included back here for Main Page compatibility. -->
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<!--  
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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 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.

“
I was astonished to find that it was only a block away from my cousin's house, which I'd probably been to four or five times! How could I have missed a giant glacial erratic boulder in such proximity? I had to investigate, so I began to take my leave.
 ”
find some more great geohashing quotations here.
—OtherJack, commenting on 2014-03-12 47 -122
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 7 December 2024, will be based on the Dow’s opening price published at 09:30 EST (14:30 UTC) on Friday 6 December. 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

2024-12-05

Recent Expeditions

Expeditions and Plans

2024-12-04

Expeditions and Plans

2024-12-03

Expeditions and Plans

2024-12-02
Zürich, Switzerland globescorer located in a front yard of a development in Buchs (ZH), Switzerland.
Braunschweig, Germany Beardygrade In a forest in Leiferde, Germany.
Berlin, Germany coyotebush At the edge of a cemetery in Berlin-Britz.


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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