A quick read shows lots of missing lines and lots of park lines with limited historic value... It also demonstrates the problem of how to deal with industrial lines including logging and mining which are not common carriers...
I would suggest treating it as a starting point, confirming every entry and searching for the missing...
Randy Hees
Director, Nevada State Railroad Museum, Boulder City, retired
PacificNG.org - a curated Wiki on Pacific Slope Narrow Gauge www.pacificng.com
Moderator - Railway Preservation News www.rypn.org