image usgs_drg_co_39102_g6 Colorado 39.750N 102.625W Abarr o 2.438400 0.000000 0.000000 -2.438400 691331.977248 4417194.850617 G6 1973 1974 2006-10-10 USGS DRG o map of Colorado 39.750N 102.625W G6 Abarr maps_usgs usgs_co jared@redjar.org 1974-01-01 2006-10-10