muir way

cathedral spires, yosemite 1868

view from glacier point, yosemite 1868

valley of mt. lyell, yosemite 1868

grasshoppers - 2 art print

daces and chubs art print

vancouver island hydrological map

yellowstone topographic map of ishawooa 1904 map

yellowstone topographic map of the national park and forest reserve 1904 map

north america 1912 usgs map black

carlsbad caverns shaded relief map

great smoky mountains shaded relief map

theodore roosevelt shaded relief map

state birds and flowers of usa map- 1965

arkansas-white-red regional hydrological map

ohio regional hydrological map

barn-door skate art print

spotted black rockfish art print

arched falls, base of mount blackmore, yellowstone 1873

crater of the architectural geyser, lower basin, yellowstone 1873

meeting of the usgs in the lower firehole basin, yellowstone 1873