Alpine Tundra Plant (Erysimum nivale) Colorado
Alpine Tundra Plant (Lloydia cerotina) Colorado Rockies
Alpine Plant Colorado Rocky Mountains
Alpine Plant (Geum Rossi) Colorado Rocky Mountains
Strawberry Plant Colorado Rocky Mountains
Meadow Plant, Colorado Rocky Mountains
Parasitic Plant Forest of Colorado Rockies
Cushion Plant, Alpine, Colorado Rockies
Buttercup Alpine Colorado Rockies
Meadow Plant Colorado Rocky Mountains
Buttercup Through Snow, Rocky Mountain National Park
Alpine Tundra near Niwot Ridge Colorado Rocky Mountains
Black Sedge Alpine Colorado Rockies
Doll's Eyes, Rocky Mountain Colorado
Alpine Tundra Plant Rocky Mountain Colorado
Alpine Tundra Colorado Rocky Mountains
Niwot Ridge, Colorado Alpine, Rocky Mountains
Sedge Hummocks Colorado Alpine Tundra
Andrews Glacier and Lake Colorado Rocky Mountains
Andrews Glacier Colorado Rocky Mountains
Rocky Fell Field Mountains of Colorado
Treeline Colorado Rocky Mountains
Vegetation and Stream Colorado Rocky Mountains
Rocky Fell Field Colorado Rockies
Colorado Rockies
Colorado Rockies near Estes Park
Treeline Central Colorado Rockies
Alpine Tundra and Lake near Timberline Colorado Rockies
Landscape View of Colorado Rockies
Flag-Form Trees Colorado Rockies
Landscape View, Colorado Rockies
Dr. Harold Lutz Lecturing University of Colorado Mountain Ecology Class
Famous Alpine Ecologist John Marr Lecturing University of Colorado
Dr. John Marr Lecturing to Alpine Ecology Class
Dr. Paul Kilburn Summer Instructor of Mountain and Alpine Ecology Classes
Andrews Glacier and Valley Rocky Mountains Colorado
Reflective Tarn Downslope of Andrews Glacier
Andrews Glacier
White Flowers
Arctic and Alpine Valuable Plant for Science
Primroses Meadows of Colorado Rocky Mountains
Columbine, Colorado State Flower
Over mature Columbine, Colorado State Flower
Mountain Laurel
Sunflower Relative Colorado Rocky Mountains
Flag-Form Trees near Timberline Colorado Rockies
Buttercups in Melting Snow, Colorado
Cushion Plant, Colorado Alpine
High Mountain Alpine Plant
Old Man of the Mountain Sunflower (Hymenoxys Grandiflora)
Alpine Willow Rocky Mountains of Colorado
Dwarf Willow Alpine Colorado Rockies
Alpine Plant Colorado Rockies
Tiny Primrose Alpine Rocky Mountains
Alpine Clover Colorado Rockies
Forget-Me- Not Cushion Plant, Colorado Rockies
Pika above Timberline Rocky Mountain National Park
Barren, Rocky Slope Alpine Colorado Rockies
Krummholtz on James Peak, Colorado
Krummholtz on James Peak, Colorado
Glacier-formed cirque in Colorado
Alpine vegetation
Stream line vegetation in Colorado
Aspen trees in Colorado
Flag form trees in Colorado
Stone stripes in Colorado
James Peak in Colorado
James Peak in Colorado
Colorado Rockies
Colorado Rockies
Niwot Ridge in Colorado
Alpine tundra in Colorado
Glacier-formed cirque in Colorado
Glacier-formed cirque in Colorado
Stone nest in Colorado
Stone stripes in Colorado
James Peak in Colorado
Fungus on fir tree in Colorado