The Chugach National Forest is a 5.4 million acre (23,000 km²) United States
National Forest in south Central Alaska
. It is located in the mountains surrounding Prince William Sound
including the eastern Kenai
Peninsula and the delta of the Copper River
. It is the second-largest (third-largest if the Humboldt-Toiyabe National Forest is considered as one entity) forest in the U.S. national forest system, and is the northernmost national forest.
Though the Chugach forest is largely wild, with only 90 miles (140 km) of Forest Service roads, none of it is currently designated as wilderness.The Chugach is a temperate rain forest in the pacific temperate rain forest region. Here the forest occupies only a very narrow strip between the ocean and the icy alpine zone. The dominant trees are limited to Sitka
spruce, western hemlock and mountain hemlock. This zone is known as the"sub-polar rainforest".