Wyoming Physiographic Map
Wyoming Trip Summer 2004
John J. and Barbara R. Thomas
Yellowstone National Park
Keppler Cascades, one of many waterfalls along our road into the park.
A small part of Norris Geyser Basin.
The variety of colors in algae growing in the very hot runoff from the geysers. The color of the algae indicates the temperature of the water, green is hotter than red-brown.
The Lower Falls of the Yellowstone River from Artist's Point.
The brink of the Lower Falls.
Bison along the Yellowstone River in the Lamar Valley.
A churning cauldron found in the Lamar Valley.
A view on the Swan Lake Flats looking toward the Gallatin Range.
Minerva Terrace at Mammoth Hot Springs.
Canary Spring on Minerva Terrace.
Black Tail Lakes in the northeast part of the park.
Yellowstone is made up of interbedded thick layers of welded Tuff and thick basaltic lava flows. The 25 foot thick basaltic flow is easy to recognize by its columnar jointing.
The falls on the Firehole River.
Hot Spring in the Lower Geyser Basin.
Patterns in the travertine formed by water flowing out of the hot springs.
Opal Pool, looking across it toward the Gallatin Range.
Fishing Cone at West Thumb on Yellowstone Lake. In the old days, you
could stand on Fishing Cone, catch a fish, and cook it inside the cone.