fixed start/end dates for railroads in Michigan, added interurban segment, canal segment using USGS 3DEP, Wikipedia, USGS Topo

fixed start/end dates for railroads in Michigan

added interurban from Grand Rapids to Muskegon, MI using USGS 3DEP

added railroad in Michigan, fixed start/end dates

fixed start/end dates, added railroads in Michigan using Bing, USGS Topo, USGS 3DEP

added interurban from Oxford, MI to Flint, MI using USGS Topo, USGS 3DEP, wikipedia for place start dates

extended railroad in Minnesota using Bing, added places using Wikipedia for start dates

connected up railroad in MN using Bing

extended railroad in Minnesota using Bing, added places using Wikipedia for start dates

fixed railroad start/end dates, added hamlets in MI using Wikipedia, USGS Topo

extended, added railroad in Ohio using USGS 3DEP, USGS Topo

extended, connected up railroad in Ohio using USGS 3DEP, USGS Topo

connected up railroad in Ohio using USGS 3DEP

extended, connected up railroad in Ohio using Bing

added railroad in Ohio using Bing

added railroad in Ohio using Bing

connected up railroad in Ohio using Bing, USGS Topo, USGS 3DEP

extended, connected up railroad in Ohio using Bing, USGS 3DEP

connected up railroad in Ohio using Bing, USGS Topo, USGS 3DEP

added places and railroads in Ohio using USGS Topo, USGS 3DEP, Wikipedia for dates