Abandoned strand line of Lake Bonneville, N. of Salt Lake City, Utah
Abandoned strand line of Lake Bonneville, N. of Salt Lake City, Utah
Abandoned strand line of Lake Bonneville, S. of Salt Lake City, Utah
Abandoned strand line of Lake Bonneville, S. of Salt Lake City, Utah
Abandoned strandline at 1725 foot contour of Basin Lake
Abandoned strandline at 1725 foot contour of Basin Lake
Abandoned strandlines
Abandoned strandlines
Ablation till with stratified material in lens - near Cadillac, Sask.
Ablation till with stratified material in lens - near Cadillac, Sask.
Active blow out dune, near Portreeve , Sask.
Active blow out dune, near Portreeve , Sask.
Active volcano Ubinas with ash covered foreground
Active volcano Ubinas with ash covered foreground
Actively moving sand area in blow-out
Actively moving sand area in blow-out
Adaptive radiation of placental mammals in Cenozoic
Adaptive radiation of placental mammals in Cenozoic
Aerial view - anastomosing channels, Mackenzie River delta, N.W.T.
Aerial view - anastomosing channels, Mackenzie River delta, N.W.T.
Aerial view of a glacial spillway
Aerial view of a glacial spillway
Aerial view of a glacial spillway
Aerial view of a glacial spillway
Aerial view of alluvial fans
Aerial view of alluvial fans
Aerial view of angular unconformity
Aerial view of angular unconformity
Aerial view of area between ground moraine and lacustrine area
Aerial view of area between ground moraine and lacustrine area
