. . . . . "USGS 7.5' topographic map" . "Grays Peak, Colorado" . "Grizzly Peak (Summit County, Colorado)" . "Grizzly Peak" . . . . "258.1656" . . . . . "Grizzly Peak (Summit County, Colorado)" . . "4094.3784" . . . "Grizzly Peak D" . . . . . . .