[Renfield]

That’s a nice site, but it’s just about impossible to do any coherent analysis with state-scale geologic maps. We use 15-minute geologic quads at work (these are at a scale of 1” = 4000’).

[ForGod'sSake]

That’s a nice site, but it’s just about impossible to do any coherent analysis with state-scale geologic maps.

Completely understand. I'm thinking of something on a larger scale. If you have a few minutes to spare, see what you can do with my question to Fred Nerks in #59. The colors give me fits!