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