This small volcano atop the Shivwits Plateau offers a great panorama of the Arizona Strip. You can see other mountain ranges in Arizona, Nevada, and Utah as well. This mountain is named in honor of Frederick Dellenbaugh who served as artist and assistant topographer on Major John Wesley Powell’s second river expedition through the Grand Canyon in 1871-72. On Powell’s first exploration in August of 1869, three of his party abandoned the expedition and hiked North through Separation Canyon onto the Shivwits Plateau. Brothers Oramel and Seneca Howland and William Dunn were never heard from again and were killed before reaching Mormon settlements. William Dunn’s inscription is located on the summit of Mt. Dellenbaugh.