Almost every large cave system exists because slightly acidic water met soluble rock and took a very long time about it. The shape of what resulted records the route the…
Everything about a lake follows from how its basin was made. Ice, movement of the crust, volcanic collapse, dissolving rock and a river changing its mind all produce lakes, and…
The useful question at any reservoir is why the wall is where it is, because that position was chosen for reasons of geology and geometry that determined everything else. Here…
The useful question on any coastal path is why the route exists at all, because walking was rarely the reason. Somebody needed to get along this coast, and the path…
The useful question at any market is who it exists to serve, because the answer determines the hour it operates, its position in a town and whether you are a…
The question worth asking at any waterfall is what makes the drop possible, because a river will otherwise smooth its own bed given enough time. Something is preventing that, and…