Dave B
Tenderfoot
You folks probably already know about this resource but I thought I would share for those who hadn't ran across it yet. It has old topo maps and shows structures that can be downloaded.
https://ngmdb.usgs.gov/topoview/viewer/#4/40.01/-100.06
Dave
https://ngmdb.usgs.gov/topoview/viewer/#4/40.01/-100.06
Dave