Gunnison Valley Another View of Gunnison Valley Approaching Rt 24 San Rafael Reef in Distance Black Formation with Reef Beyond Northwest From Junction 70/24 Closer View Southwest From Junction Closer View Another View Northwest Closer View US 70 Heading West Through Reef Another View Southwest Red Jurassic Siltstone Closer View Talus Slopes at Base of Cliffs Dramatic Red and White in Reef Reef now Red, White and Blackish Reef now Red, White and Greenish