New Maps for Colorado and Minnesota Newly designed US Topo maps covering Colorado and Minnesota are now available online for free download In keeping with rapid demand, the USGS has posted new US Topo quadrangles covering Colorado (1,794 maps) and Minnesota (1,689). These new quads replace the first edition US Topo maps for those states. The replaced maps will be added to the USGS Historical Topographic Map Collection and are also ...
Sept. 12, 2013 - USGS