02/24/2011 08:35 am ET | Updated May 25, 2011

'Hidden Alaska': Bristol Bay Threatened By Mining & Development (PHOTOS)

Can you put a pricetag on nature? Perhaps $350 billion?

National Geographic's book "Hidden Alaska: Bristol Bay and Beyond," photographed by Michael Melford and written by Dave Atcheson, captures a fragile region's unspoiled nature. Bristol Bay is home to the largest salmon spawning ground in the world -- it is also home to countless other creatures. But the bay is threatened by mining and resource development projects. Although the development has up to $350 billion to gain, it would be at the cost of one of the world's natural beauties.

All photos and captions are courtesy of Michael Melford/National Geographic.

Hidden Alaska