Former Rock and Ice Magazine and Trail Runner deputy photo editor David Clifford has extensive experience shooting outoors and with a wide gamut of clients including GQ, Denver Broncos, High Lantern Group, National Geographic, Canon USA, National Geographic Adventure, Marmot, Men's Fitness, Outside Magazine, Patagonia, and The North Face.

David has also mentored some of the best talent in the industry and is involved in several workshops to teach adventure photography.