<Tr> <Td> - elevation </Td> <Td> 6,181 ft (1,884 m) </Td> </Tr> <Tr> <Td_colspan="2"> Map of upper canyon </Td> </Tr> <P> The Grand Canyon of the Yellowstone is the first large canyon on the Yellowstone River downstream from Yellowstone Falls in Yellowstone National Park in Wyoming . The canyon is approximately 24 miles (39 km) long, between 800 and 1,200 ft (240 and 370 m) deep and from . 25 to . 75 mi (0.40 to 1.21 km) wide . </P> <P> Although trappers and prospectors who visited the Yellowstone region had knowledge of the canyon earlier, the first significant descriptions were publicized after the Cook--Folsom--Peterson Expedition of 1869 and the Washburn - Langford - Doane Expedition of 1870 . </P>

Where is the grand canyon of yellowstone located