Glennallen is a census -designated place (CDP ) in the Valdez - Cordova Census Area, Alaska. The community is located approximately 300 km east of Anchorage on the Glenn Highway, close to the junction with the Richardson Highway. The Wrangell-St Elias National Park begins a few kilometers to the east.
The name comes from the surname of Edwin Glenn and Henry Tureman Allen, two officers of the United States Army, who were involved late 19th century explorations in the region of the Copper River, together.
In contrast to most other towns in the area Glennallen was not built on the site of a settlement of Alaska Natives. The region was once inhabited by the Ahtna.
Glennallen serves as a supply center of the Copper River region. Offices for federal agencies such as the Bureau of Land Management or the Department of Fish and Game, road maintenance and the visitor center of the National Park are located in or near Glennallen. The airport is located 7 km northeast of Gulkana.