Over the past million years, Shell Creek has incised a deep chasm through the sedimentary stone and ancient granite. The water of Shell Falls, dropping at a rate of 3,600 gallons per second, follows fractures in the resistant granite. Shell Canyon is named for the shell fossils found in the sedimentary canyon walls.
Shell Falls Interpretive Site is located on U.S. Highway 14, 21 miles southwest of Burgess Junction, Wyoming. The site is open 9:30 a.m. to 5:00 p.m., seven days a week, Memorial Day through mid-September.
