Possibly my favorite piece of writing on the Internet, a substantive, totally engrossing investigative mystery set on what feels like the Martian frontier.

The writer’s descriptions of preparing for searches limited by the environment to a couple of hours might as well have taken place in an airlock, and (spoilers!) when they finally turn up some evidence towards the end and manage to involve the local scattered populace & sheriff in the hunt before the payoff...

Read with a tab of Google Earth open and follow along with the clues for a weirdly immersive experience, preferably on a hot and dry day!