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== What is this? == | == What is this? == | ||
Revision as of 22:05, 16 September 2009
Welcome to the Geohashing Wiki. Geohashing was brought to you by the xkcd webcomic.
| “ | "He tells me that he was burglarized recently, that he assumed that's why I was there, and that when he saw me (must've looked pretty weird, me stamping the grass and taking pictures of it), he was sitting by the window with his RIFLE debating whether or not to SHOOT ME."
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| find some more great geohashing quotations here. | —Bird in #geohashing about his debut hash
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What is this?
Geohashing is a method for finding an effectively random location nearby and visiting it: a Spontaneous Adventure Generator. Every day, the algorithm generates a new set of coordinates for each 1°×1° latitude/longitude zone (known as a graticule) in the world. The coordinates can be anywhere -- 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.
As such, these coordinates can be 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:
- Beginner's guide - start here
- Guidelines to follow
- Frequently asked questions
- Map applications that may help you get there
- Geohashing guides on various topics
Other people's expeditions:
- geohashing.win - browse all expeditions on a map
- Hall of Amazingness
- Maps and statistics
Get involved
- Find a geohash using a coordinate calculator
- Find others in your local area
- Chat on Discord or IRC #geohashing chat on slashnet (web interface)
- Create your user page and become a part of the community!
news archive • Edit What's new on the wiki?
- Taiwan had its first successful geohash!
- The most active graticule for 2024-10 was 48,11.
More pages needing discussion • Discussion archive • Edit Now discussing - please join in:
- Make sure to check out and give your thoughts on the Proposed achievements!
- For more general discussions, find us here:
- IRC: #geohashing on irc.slashnet.org
- Discord: discord.gg/BvRfGat
Official xkcd meetups
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 Saturday meetups on 23 November 2024 are now available. The coordinates for the next Saturday meetups, scheduled for 30 November 2024, will be based on the Dow’s opening price published at 09:30 EST (14:30 UTC) on Friday 29 November. See timeanddate.com to convert this time to your local time zone.
- Coordinates: Mon 25 Nov* | Sun 24 Nov | Sat 23 Nov | Fri 22 Nov | Thu 21 Nov | Wed 20 Nov | Tue 19 Nov | Mon 18 Nov
* Only known for regions east of 30W longitude. Coordinates for regions to the west announced 14:30 UTC, 25 November. - View expedition archives for: November 2024 | October 2024 | September 2024 | More...
- Refresh the cache
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.
