Grosvenor Arch is located at the end of the giant Cockscomb at the northern end of Cads Crotch within The Grand Staircase Escalante National Monument. Grosvenor Arch is a unique sandstone double arch located within Grand Staircase-Escalante National Monument in southern Utah. It is named to honor Gilbert Hovey Grosvenor (1875–1966), a president of the National Geographic Society, publishers of the National Geographic Magazine.
Located in northern Kane County, it is close to and south of Kodachrome Basin State Park and is accessed from the north or south via Road 400, a dirt road that traverses Cottonwood Canyon, Utah and skirts the Grand Staircase on its western margin.
From American Scenic Places