added railroad in Ohio using USGS 3DEP;USGS Topo;Bing
fixed start/end dates of railroad
fixed start/end dates of railroad
added Sherman, Michigan and other places in Michigan
added M-63, section of M-37, logging railroads, etc. in Michigan
added/aligned logging railroad in Michigan's northern lower peninsula using USGS 3DEP
added/aligned logging railroad in Michigan's northern lower peninsula using USGS 3DEP
added Fiborn quarry branch line dates
added logging railroad in Michigan's Northern Lower Peninsula using USGS 3DEP
added railroad and places in IA using USGS Topo, Wikipedia, State of Iowa
added railroad and places in IA using USGS Topo, Wikipedia, State of Iowa
added logging railroad in northern Wisconsin using USGS 3DEP
fixed start/end dates of railroad
added logging railroad in Michigan's Northern Lower Peninsula using USGS 3DEP
added logging railroad in Michigan's Northern Lower Peninsula using USGS 3DEP
added logging railroad in Michigan's Upper Peninsula using USGS 3DEP
added logging railroad using USGS 3DEP
added logging railroad using USGS 3DEP
fixed start/end dates of railroad
added railroad using USGS 3DEP