The Chugach Mountains of southern Alaska are the northernmost of the several mountain ranges that make up the Pacific Coast Ranges of the western edge of North America. The range is about 250 miles (402 km) long and 60 miles (97 km) wide, and extends from the Knik and Turnagain Arms of the Cook Inlet on the west to Bering Glacier, Tana Glacier, and the Tana River on the east. It is bounded on the north by the Matanuska, Copper, and Chitina rivers.

The highest point of the Chugach Mountains is Mount Marcus Baker, at 13,094 feet (3,991 m), but with an average elevation of 4,006 feet (1,221 m), most of its summits are not especially high. Even so, its position along the Gulf of Alaska ensures more snowfall in the Chugach than anywhere else in the world, an annual average of over 1500 cm (800 in).

The Kenai Mountains are a mountain range in the state of Alaska. They extend 192 km (120 mi) northeast from the southern end of the Kenai Peninsula to the Chugach Mountains, and have an average elevation of 3,000 to 5,000 feet.

Both the Harding and Sargent Icefields, as well as the many glaciers that emanate from them, originate in the Kenai Mountains. Several prime fish-producing rivers, including the Kenai River and the Russian River, also flow from the mountains.

The name Kenai was first published by Constantin Grewingk in 1849, who obtained his information from I. G. Wosnesenski's account of a voyage to the area in 1842.

The Wrangler Mountains ecoregion consists of steep, rugged mountains of volcanic origin that are extensively covered by ice fields and glaciers. Most slopes are barren of vegetation. Dwarf scrub tundra communities, consisting of mats of low schrubs, fobs, grasses, and lichens, predominate where vegetation does occur.

The climate has harsh winters and short summers.

The Saint Elias Mountains are a subgroup of the Pacific Coast Ranges, located in southeastern Alaska, Southwestern Yukon and the very far northwestern part of British Columbia in Canada.

The range spans Wrangell-St. Elias National Park and Preserve in the United States and Kluane National Park and Reserve in Canada and includes all of Glacier Bay National Park in Alaska.

In Alaska, the range includes parts of the city of Yakutat and the Hoonah-Angoon and Valdez-Cordova census areas.