Alan Cressler:
Acarospora contigua, Emerald Mountain, Glacier Basin, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Alces alces, Kawuneeche Valley, Rocky Mountain National Park, Grand County, Colorado 1
Alan Cressler:
alpine lake, Forest Canyon, from Rock Cut area, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Androsace septentrionalis, tundra, Toll Memorial Mountain, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Aquilegia coerulea, Fern Lake Trail, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Aralia nudicaulis, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Aralia nudicaulis, Rocky Mountain National Park, Larimer County, Colorado 2
Alan Cressler:
Asclepias speciosa, Big Thompson River Valley, Moraine Park, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Asclepias speciosa, Big Thompson River Valley, Moraine Park, Rocky Mountain National Park, Larimer County, Colorado 2
Alan Cressler:
Berteroa incana, Glacier Basin, Rocky Mountain National Park, Larimer County, Colorado 4
Alan Cressler:
Berteroa incana, Glacier Basin, Rocky Mountain National Park, Larimer County, Colorado 5
Alan Cressler:
Big Thompson River Valley, Moraine Park, Rocky Mountain National Park, Larimer County, Colorado 2
Alan Cressler:
Big Thompson River Valley, Moraine Park, Rocky Mountain National Park, Larimer County, Colorado 4
Alan Cressler:
Big Thompson River, Big Thompson River Valley, Moraine Park, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Big Thompson River, Fern Lake Trail, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Big Thompson River, Fern Lake Trail, Rocky Mountain National Park, Larimer County, Colorado 2
Alan Cressler:
Big Thompson River, Fern Lake Trail, Rocky Mountain National Park, Larimer County, Colorado 3
Alan Cressler:
Big Thompson River, The Pool, Fern Lake Trail, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Bistorta bistortoides, near Medicine Bow Curve, Rocky Mountain National Park, Larimer County, Colorado 2
Alan Cressler:
Bryodesma densum, Glacier Basin, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Calochortus gunnisonii, Glacier Basin, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Calochortus gunnisonii, Glacier Basin, Rocky Mountain National Park, Larimer County, Colorado 2
Alan Cressler:
Calochortus gunnisonii, Glacier Basin, Rocky Mountain National Park, Larimer County, Colorado 3
Alan Cressler:
Caltha leptosepala subsp. leptosepala var. leptosepala, Haiyaha Lake Trail, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Campanula rotundifolia, Glacier Basin, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Campanula rotundifolia, Glacier Basin, Rocky Mountain National Park, Larimer County, Colorado 2
Alan Cressler:
Cashe La Poudre River Valley, and Specimen Mountain, view from Medicine Bow Curve, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Castilleja linariifolia, Emerald Mountain, Glacier Basin, Rocky Mountain National Park, Larimer County, Colorado 2
Alan Cressler:
Castilleja miniata (possible identification), Glacier Basin, Rocky Mountain National Park, Larimer County, Colorado 1
Alan Cressler:
Castilleja occidentalis, tundra, Toll Memorial Mountain, Rocky Mountain National Park, Larimer County, Colorado 1
