This card comes from Maura from USA. 🙂
Marble Canyon is the section of the Colorado River canyon in northern Arizona from Lee’s Ferry to the confluence with the Little Colorado River, which marks the beginning of the Grand Canyon. Lee’s Ferry is a common launching point for river runners starting their journey through the Grand Canyon. Marble Canyon is also well known for the Navajo Bridge, where US Highway 89A crosses the Colorado River.
The name Marble Canyon is a misnomer because there is no marble there. Although John Wesley Powell (famous for the first known passage through the Grand Canyon) knew this when he named the canyon, he thought the polished limestone looked like marble. In his words, “The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of many colors – white, gray, pink, and purple, with saffron tints”