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Revision as of 22:01, 25 November 2014 by imported>1PE (→‎2014)

Welcome to the Geohashing Wiki. Geohashing was brought to you by the xkcd webcomic. Read this information in Flag of Germany.png Deutsch - Flag of Spain.png Flag of Mexico.png Flag of Chile.png Español - Flag of France.png Français - 800px-Flag of Sweden.png Svenska - and maybe 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


What is this?

The Algorithm as shown in xkcd comic #426, published on 21 May 2008.

Geohashing is an adventure, comprising journeys to random places within a given area. Every day, effectively random locations are generated by an algorithm that achieves randomness using stock market data. It is a Spontaneous Adventure Generator. A set of coordinates is generated for each 1°×1° latitude/longitude zone (known as a graticule) in the world. The coordinates can lie anywhere in the graticule — in the forest, in a city, on a mountain, or even in the middle of a lake! Everyone in a given region gets the same set of coordinates relative to their graticule.

The generated coordinates are used as destinations for adventures, à la Geocaching, or for local meetups. After the fun, please 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). You can use this wiki to document the daily coordinates (geohashes) you’ve been to or tried to reach.

Learn more

How to geohash:

Other people's expeditions:

Get involved



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

  • The most active graticule for 2024-11 was 42,-78.

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.


Recent and Upcoming Coordinates

The coordinates for the next Saturday meetups, scheduled for 21 December 2024, will be based on the Dow’s opening price published at 09:30 EST (14:30 UTC) on Friday 20 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.

Gallery of Recent Expeditions

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 read the how-to. Please also write an account of your expedition, even if only a short one, so that people can click the link on your picture and find out more.

Click here to learn how to add your own expedition pictures.

If your newly added expedition does not show, click here to refresh the cache

Click here to see an automatic list of all recent expeditions, whether pictures were posted or not.

Recent Expeditions


Recent non-expeditions

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

2014

  • 2014-11-26 global In a farmer's field, about 10km south of Tal Abyad (Arabic: تل أبيض‎ Tal Abyaḍ; Kurdish: Girê Sipî), a Syrian town located along the Balikh River within the Ar-Raqqah Governorate, and a further 2km from Akçakale in Turkey. Apart from the farmers, this might be a troubled place to be. 1PE (Canberra) (talk) 17:01, 25 November 2014 (EST)
  • 2014-09-23 global In the coastal national park/forest about 15km north-east of Bintulu, in Sarawak, East Malaysia. It's only several hundred metres from the palm oil plantation roads. Bintulu has the largest single gas manufacturing complex in the world, with a significant 'expatriate' population, so there are potentially many nerdy geohashers.1PE (Canberra) (talk) 21:42, 22 September 2014 (EDT)
  • 2014-08-29 31 35 Drive or walk along the mostly deserted (no buildings) Kadish Luz Street, West Jerusalem. The hash is beside a pipe access cover. 1PE (Canberra) (talk) 23:49, 28 August 2014 (EDT)
  • 2014-08-29 global An easy walk from a road in the western United States. Unfortunately, it's in Montana, and I have commitments in California, so I couldn't make it there in time for midnight even if I had a car at hand. Codae (talk)
  • 2014-08-27 28 77 In the outskirts of Delhi, India, at the rear of an upmarket country estate house in the Dera Mandi district. I'd love to knock on that door./gate.1PE (Canberra) (talk) 00:16, 27 August 2014 (EDT)
  • 2014-04-30 49 -2 This was pretty much on the beach, on the island of Sark! It's unusual enough for the Channel Islands to be hit at all, but a beach (or small boat) hash on Sark is something else. Wish I could have been there. Macronencer (talk) 08:10, 2 May 2014 (EDT)
  • 2014-02-18 52 4 THE place to waste your time [1] On the dock of the bay no less. But, the restricted part of the naval base. JwB (talk)09:52, 18 February 2014 (CET)
  • 2014-01-30 Global Hash [2] 28N 126E South China Sea, north-west of Okinawa. I have a friend sailing through this area at the moment, about 240km South East so perhaps two days sail from this GH. However, there is no chance of 'diverting' him today. Hence, no chance of various achievements (he is capable of navigating by compass AND sextant, has a cat onboard the yacht to pat, etc.) A pity! 1PE (Canberra) (talk) 17:30, 29 January 2014 (EST)
  • 2014-01-11 -34 149 [3] ON the south-bound track of a bendy bit of the Melbourne, Australia to Sydney, Australia main train line, near Gunning, New South Wales (west of / in the graticule of Goulburn, Australia) -- SOMEONE must be on a train! 1PE (Canberra) (talk) 18:09, 10 January 2014 (EST)

2013

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