East of Yellowstone invites the curious into the dramatic geologic beauty of the Clarks Fork Valley just east of the world¿s first national park. Guided by geologist and professor Bob Carson, explore one of the most fascinating natural theaters in the world and interpret the fascinating geologic story of the terrain east of Yellowstone National Park, including the nearby Beartooths, Absarokas and Bighorn Basin of Wyoming and Montana. Five road logs steer readers over the Beartooth and Chief Joseph highways and adjoining roads to vistas of rugged mountains and scenic valleys. As the mileposts tick past, the remarkable history behind the enigmatic Heart Mountain detachment, Absaroka volcanics and Pleistocene glaciation unfolds. Full-color maps and an amazing collection of photographs enhance this story of the ages. ¿ Five road logs with maps covering some 166 miles¿ 10 topographic maps with trails outlined¿ 121 color photographs and 7 geologic maps¿ Historical sketches and tips for recreation