Dunn Butte
Dunn Butte, is a 5,714 foot-elevation-summit, a minor butte, along a line of three summits along the west drainage of Ninetyone Mile Canyon and Creek. From higher elevation-to-lower, they are Angels Gate, Dunn Butte, and Hawkins Butte. The bases of all three landforms are connected, and Dunn Butte is a south-southwest ridgeline, with the high point prominence at the northeast terminus.
The massif of Wotans Throne is adjacent 1.0 mi northeast. The Cape Royal viewpoint is ~2.0 mi northeast; Dunn Butte is 2.0 north of the Colorado River, its drainage point.
Geology
The prominence geology of Dunn Butte is based on the massifs of Supai Group upon the cliff-former,, of Redwall Limestone. The Supai Group, massifs are also found on the parent, of Angels Gate, and neighboring butte northwest, Thor Temple.Geology – Dunn Butte, Angels Gate, &; Thor Temple
The three prominence-bases of neighboring Angels Gate and Dunn Butte, and close by Thor Temple, are composed of Supai Group. Unit 4, Supai, is the cliff-former,, Esplanade Sandstone, that has a common, and sometimes thick presence, in nearly all regions of the Grand Canyon.For Thor Temple, the prominence platform is rectangular, on a rectangular pyramid of Supai Group. The tabletop platform contains the debris of upper eroded members, Hermit Shale,. For Angels Gate, two Coconino Sandstone prominences, lies upon a northwest-by-southeast platform of Esplanade Sandstone. Angel Gate's 6,761 ft height is identical to Thor Temple's 6,741 ft elevation.
Dunn Butte, at 5,714 ft is ~1000 ft lower, and its platform ridgeline is Supai Group, unit 2,, Manakacha Formation, upon slopes of slope-forming Watahomigi Formation. Again, the Supai Group lies upon the platform of the Redwall Limestone massif.