Final day for cave tours is Sept 22. The caves and visitor center will be closed for the winter season beginning Sept 23. The park will re-open in the Spring.
These extreme conditions create desirable habitats for large mammals such as Mountain goats, Big horn sheep, Mountain lions, Moose, Mule deer, and Black bears. The canyon also supports small mammals such as Ringtail cats, Longtail weasels, raccoons, squirrels, chipmunks, packrats, and bats.
The canyon's hot 100° F (38° C) summers supports reptiles such as the Great Basin rattlesnake, Gopher snake, Rubber boa, and Sagebrush lizard.
The American Fork River supports 2 species of introduced fish, Brown trout and Rainbow trout.
The canyon supports commonly seen birds such as the American dipper, Broad-tailed hummingbird, Canyon wren, Orange-crowned warbler, Western tanager, Violet-green swallow, and Stellers jay. Occassional visits are seen from larger birds such as Wild turkeys, Red-tailed hawks, Peregrine falcon, and Golden eagles.
For such a small park, the ranging elevations and various vegetation types allow for a large variety of animals.
Did You Know?
Cave Draperies, or Cave Bacon, form as calcite rich water trickles down an inclined bedrock surface. Over thousands of years a thin line of calcite builds up along the wall as water follows this same path over and over. These formations appear in caves in all different shapes, sizes and colors.