This greatest single-peak glacial system in the United States radiates from the summit and slopes of Mount Rainier, an ancient volcano.
It is hard for visitors to forget their first view of Crater Lake. On a clear summer day, the water is such a deep blue many have said it looks like ink.
Active volcanism at the park includes hot springs, steaming fumaroles, mud pots, and sulfurous vents.
Olympic National Park encompasses three distinctly different ecosystems: mountains, rain forest, and coastline.