added logging railroads in Michigan using USGS 3DEP, places too using USGS Topo and USPS for dates
added logging railroads in Michigan using USGS 3DEP, places too using USGS Topo and USPS for dates
adjusted arbitrary start/end dates of railroad, added Ames, and Kelley, IA
added places, railroads, in Iowa using USGS Topo, Wikipedia, USPS, Iowa Secretary of State for dates
added places in Mid-Michigan using USGS Topo, USPS
added mines, mining railroads, places in Dickinson County, MI
added Michigan highways, logging railroads using USGS 3DEP, Bing, Wikipedia
added segments of Iowa State Highway 1
added missing start/end dates for railroad
added missing start/end dates for railroad
added missing start/end dates for logging railroad, spur, and extended them
added places, logging railroads in Wisconsin using USGS 3DEP
added places, railroads, in Iowa using USGS Topo, Wikipedia, USPS, Iowa Secretary of State for dates
added logging railroads in Michigan using USGS 3DEP
added logging railroads in Michigan using USGS 3DEP
added logging railroads in Michigan using USGS 3DEP
added railroad and places in ND using USGS Topo;USGS 3DEP
added railroad and places in Iowa using USGS Topo;USGS 3DEP
connected up railroads using USGS Topo;USGS 3DEP, added places using USPS for dates