This is such a gorgeous map:
[gigapan id=”220523″ height=”250″ width=”100%”] Link 0.43 Gpx GigaPan of a geologic map by Berg, T.M., Edmunds, W.E., Geyer, A.R., Glover, A.D., Hoskins, D.M., MacLachlan, D.B., Root, S.I., Sevon, W.D., and Socolow, A.A., (1980)
I’ve been organizing a bunch of geologic maps this week for my Historical Geology students, and this is one of the most beautiful. I merged the two halves of the map that were available online and posted the result on GigaPan, which allows students to zoom in and out to various interesting parts of the map. To me, the contrast between the tightly-folded Valley & Ridge and the broader folds of the Allegheny Plateau is striking – and gorgeous!
Beautiful job. You might try a SRTM90 elevation hillshade to add a little texture. Or leave it like it is.
Jack
Yes, they did this masterfully. The hillshade idea is one the Pennsylvania survey should definitely consider for their next iteration.