Tad Nichols Collection NAU.PH.99.3.1.9.216Photo: 28, River mile: 18 Gentle Canyon, Golden River—Lower Glen Canyon, 1956.
Plez Talmadge Reilly Collection NAU.PH.97.46.192.112Photo: 29, River mile: 16.7 Sentinel Rock, mouth of Wahweap Creek, 1962. Emery Kolb Collection NAU.PH.568.2289Photo: 30, River mile: 0 Lees Ferry, view from the top of the Spencer Trail, circa 1930. Tad Nichols Collection NAU.PH.99.3.1.37.124Photo: 31, River mile 88.5 Cathedral in the Desert, Clear Creek, Escalante drainage, 1965.