Hayden Valley located in the administrative territorial entity Wyoming
Hayden Valley is a large, sub-alpine valley in Yellowstone National Park straddling the Yellowstone River between Yellowstone Falls and Yellowstone Lake.  The valley floor along the river is an ancient lake bed from a time when Yellowstone Lake was much larger.  The valley is well known as one of the best locations to view wildlife in Yellowstone.Location
The Hayden valley, centrally located in Yellowstone National Park, is approximately 7 miles (11 km) long north to south and 7 miles (11 km) wide east to west and occupies about 50 square miles (130 km2) of the park.  It lies mostly to the west of the Yellowstone River between Canyon and Yellowstone Lake, in Wyoming.  The Canyon to Lake section of the Grand Loop Road follows the eastern side of the valley near the river.
situated in found in positioned in