Alaska's Denali National Park not only includes Mount McKinley, but countless other spectacular mountains and many large glaciers. With more than 6 million acres, Denali's also encompass a complete sub-arctic ecosystem with large mammals such as grizzly bears, wolves, Dall sheep, and moose. The park was originally established as Mount. McKinley National Park in 1917.
The other three national parks mentioned in the question (Glacier Bay, Katmai, and Wrangell-St. Elias) are also located in Alaska.
