Yes, you can camp in Wrangell-St. Elias National Park and Preserve. The park offers a variety of camping options, including backcountry camping, frontcountry campgrounds, and public use cabins. There are developed campgrounds within the park, such as the Kendesnii Campground, as well as primitive campsites near visitor centers and along some of the park's roads. Backcountry camping is allowed in most areas of the park, but you should follow Leave No Trace principles and obtain a backcountry permit from a park visitor center. For a more comfortable experience, consider staying in one of the park's public-use cabins, like the Caribou Creek Cabin.