Harpers Corner Scenic Drive is a 31-mile (one-way) auto tour route from Dinosaur NM Canyon Visitor Center to Harpers Corner. Dinosaur fossils are not located in this section of the park. As the road gains elevation, the scenery reflects the changing ecosystems. The last 12 miles include several striking viewpoints and overlooks, some as high as 2500 feet above the Green and Yampa rivers. Steamboat Rock hides the confluence of the two rivers from view at the Echo Park overlook. The Harpers Corner Trail at the end of the route leads to a vista with views into Whirlpool, Lodore, and Yampa canyons.
In 1869, John Wesley Powell set out to explore the Colorado River and the Grand Canyon. Gathering nine men, four boats and food for 10 months, he set out from Green River, Wyoming, on May 24. Passing through dangerous rapids, the group passed down the Green River to its confluence with the Colorado River (then also known as the Grand River upriver from the junction), near present-day Moab, Utah, and completed the journey on August 13, 1869. Their journey passed through this area, just below Harpers Corner.