Something that would save explorers a load of clicks: An Adventure command that takes a couple seconds, and pops up a prospecting-like window that tells you the water/soil/clay quality of the spot you're on. Might require a held tool like a sampling stick to poke into the ground, might take as much stamina as digging once or twice. The way I see this implemented it wouldn't take any less traveling to find quality resource points, but it would be less annoying to do.
(Standard apology disclaimer if this has already been suggested, I tried searching, etc.)