The Complete American Gold Prospectors Handbook
Richard Blake"Richard Blake is an author, journalist, geologist and mining engineer who has personally filed over two dozen mining claims, set up three gold placer mines and assisted in a uranium mineral survey in the Colorado mineral belt in Park, Summit and Chaffee counties. One of his claims was projected by a renowned Canadian geologist to have a 'Climax-sized molybdenum deposit' (the AMAX Climax mine north of Leadville, Colorado has been the world's greatest source of molybdenum since the 1950s).".