In 1853 explorer Colonel John Charles Fr?mont invited photographer and fine artist Solomon Nunes Carvalho to accompany his fifth, and final, western expedition. As the official photographer, Carvalho documented the trip from the Mississippi River to Utah with daguerreotypes--a unique and often unwieldy form of photography that produces images on large silver plates. Carvalho was a skilled photographer, but he was a novice on the trail and he battled...