So you're planning to go on a Geohashing expedition, or you've just returned from one. Congratulations! Here is a semi-standard way to create a wiki page telling the rest of the geohashing community about your expedition. The usual steps are these, and they can be done in any order:

Create a link to the expedition page
Edit the expedition page contents (story, gallery, categories)
Upload your photos

More specific information below...

Finally, don't be afraid to write up an expedition if you failed to reach the coordinates! The second-most-popular expedition page on this wiki is for a failed expedition near Boston.

The summary

Create a new page with a title formatted in the geohash style that gives the date and location of the geohash: YYYY-MM-DD LAT LON (e.g. 2008-05-21 31 -122)
Add this text to the new page. Then save the page.

{{subst:Expedition
|lat = latitude of graticule
|lon = longitude of graticule
|date = date of expedition, in YYYY-MM-DD format
}}

Click "edit" again and fill in the blanks
Tag any images correctly

For more details read the rest of this page :)

Creating and Linking the expedition page

Creating any expedition page is as simple as creating the link, then clicking it to edit the page. It is recommended that you start the expedition page before you go on the expedition, to enable others in your area to see that an expedition is being planned, which makes them more likely to join you. Two good places to start are your own user page, or the page for the graticule. Ideally do both, so that someone starting to geohash in your graticule can see the previous expedition. If no graticule page exists, feel free to create one.

Expedition pages are named in the following manner:

2005-05-26 37 -122 - Date (hyphenated), followed by the graticule latitude and longitude.

Once you have written up the report, feel free to link your most interesting picture to the report through the main page Gallery of Recent Expeditions. The expedition report must be written first, so that people looking at the gallery have somewhere to go when they click.

Expedition contents

There is a brief empty template you can copy located at Template:Expedition. Paste it into your own expedition page and start adding information. You can pre-fill this template with the most common parameters. A short summary can be found here.

Meetup Graticule template

The expedition page should probably contain a meetup template. This will add a nice map with the red pointer at the spot, along with any alternate locations as blue pointers. Comments below an example:

{{meetup graticule
| lat=47
| lon=-122
| date=2008-06-28
| graticule_name=Seattle
| graticule_link=Seattle, Washington}}

The lat, lon, and date are used to display the map - all three parameters are important.

The final two arguments are optional. The first specifies a "pretty" name, the second the graticule it links to.

Other parameters are supported - see these instructions for more information.

Gallery

It is always nice to include a gallery if possible. The syntax for that is here, comments below:

<gallery perrow="4">
Image:2008_07_26_47_-122_ravine.jpg|One side of ravine...
Image:2008_07_26_47_-122_ravine2.jpg|... and the other.
Image:2008_07_26_47_-122_tree.jpg|This tree leads towards the spot.
Image:2008_07_26_47_-122_tree2.jpg|No further for me.
</gallery>

One side of ravine...
... and the other.
This tree leads towards the spot.
No further for me.

The perrow argument for gallery is optional, and specifies how many per row. If missing, the browser window width is the determining factor.

Image names as uploaded are listed. After the optional vertical bar (or pipe) you can list a caption for the image, if you like.

You can have multiple galleries within the expedition.

A different kind of gallery uses the same templates we use on the main page. It allows you to define image sizes and comment space.

{{#vardefine:gaWidth|150}}
{{#vardefine:gaHeight|127}}
{{#vardefine:gaLines|2}}
{{Gallery2|
{{GalleryItem | Image:2008_07_26_47_-122_ravine.jpg|One side of ravine... }}
{{GalleryItem | Image:2008_07_26_47_-122_ravine2.jpg|... and the other.}}
{{GalleryItem | Image:2008_07_26_47_-122_tree.jpg|This tree leads towards the spot.}}
{{GalleryItem | Image:2008_07_26_47_-122_tree2.jpg|No further for me.}}
}}

One side of ravine...

... and the other.

This tree leads towards the spot.

No further for me.

Uploading photos

Image filename can be whatever you like, as long as it isn't already on the system. That said, we will run out of space for images with names like Raptor and Big Tree pretty soon. I prefer to create an image filename based on the date and graticule. See above for examples.

While there is no specific limit on image sizes, please use your common sense. There is no need for several-megabyte-sized photos of a tree/bush/river. Of course feel free to make exceptions for appropriate images, but remember you can generally dramatically reduce the file size without losing much detail. Reducing the file size can be done by cropping, resizing the image, or reducing the save quality of a JPG image. Consider the contents of the image to make your decision - if you are showing GPS readings, you want to make sure the result is readable!

Once the downsized pictures are ready to be posted on the wiki, click Upload file under toolbox in the left side menu bar. Click the Browse button and you can navigate your directories to find the file.

Finally, uploaded images can have a description (where you can optionally credit the photographer) and should have a pair of categories. These same categories will be automatically added to your expedition page (courtesy of the meetup graticule template) and help to connect your pictures to your page, graticule, and date. Type these into the Summary box before clicking Upload file.

[[Category:Meetup on 2008-07-26]]
[[Category:Meetup in 47 -122]]

These can be copied once, then pasted onto each photo as uploaded. They can also be added later, if you wish.

See Category:Galleries by topic for other categories you might want to put on your photographs.

Expedition

Contents