His uncompromising portrayal of these subjects still draws pilgrims to the wilderness that bears his name, deep in the heart of the High Sierra, in hopes of seeing what Ansel Adams saw there.

Perhaps no other artist in American history has had more impact on conservation and environmentalism than master photographer ...

These pictures of the Western wilderness caused such a sensation ... O'Sullivan did not consider his works artistic. Ironically, Ansel Adams was impressed with his creativity.

Ansel Adams took his first long trip into the wilderness in 1920, when he was just eighteen. His burro, Mistletoe, carried almost a hundred pounds of gear and food; he himself carried a thirty ...

The 1,760-square-mile San Joaquin River Basin that the San Joaquin River and its web of tributaries provides with snowmelt ...