This interpretative display traces the history of the canyon's formation, and each meter equals one million years of geologic history. From the trail's start at the Yavapai Geology Museum just over a mile to Verkamp's Visitor Center, you pass about 2.1 billion years. Rock samples from within the canyon line the trail immediately west from the geology museum; look through specially positioned metal cylinders to view these rocks on the far canyon wall. Brass placards continue beyond Verkamp's. It's located on the Rim Trail, west from Yavapai Geology Museum.