Lake Clark preserves the ancestral homelands of the Dena’ina people, an intact ecosystem at the headwaters of the largest sockeye salmon fishery in the world, and a rich cultural wilderness. … Stunning Wilderness. Lake Clark National Park and Preserve is a land of stunning beauty. Volcanoes steam, salmon run, bears forage, and craggy mountains reflect in shimmering turquoise lakes. Here, too, local people and culture still depend on the land and water.