Fossil Mountain (Grand Canyon)

Fossil Mountain is a 6,729-foot-elevation summit located in the Western Grand Canyon, in Coconino County of northern Arizona, USA. It is situated ~1.5 miles due east of Mount Huethawali, about 1.0 miles southeast of the Grand Scenic Divide, and 1.0 mi west of Havasupai Point.

The Fossil Mountain prominence is a massif-remainder cliff of Kaibab Limestone, and stands above a tableland of the South Rim, a forested plateau of Kaibab Limestone.

Fossil Mountain
(Grand Canyon)
(Havasupai Point, adjacent to Fossil Mountain)
Highest point
Elevation6,729 ft (2,051 m) [1]
Prominence309 ft (94 m) [1]
Parent peakHavasupai Point (6,820 ft)[2]
Isolation0.61 mi (0.98 km) [2]
Coordinates36.1904°N 112.3608°W / 36.1904; -112.3608 
Geography
Fossil.Mountain
Location in Arizona
Fossil.Mountain
Fossil.Mountain (the United States)
LocationGrand Canyon National Park
Coconino County, Arizona, US
Parent rangeCoconino Plateau[1]
Colorado Plateau
Topo mapUSGS Explorers Monument
Geology
Mountain typesedimentary rock: limestone, sandstone, siltstone, mudstone, shale
Type of rockthe most common top 4 rock units in Grand Canyon-(relatively large thicknesses as in most of West Grand Canyon)
and
Kaibab Limestone-(prominence cliff),
Toroweap Formation,
Coconino Sandstone-(massive basement-cliff),
Hermit Formation-(shale)

Geology

Photos of the Fossil Mountain prominence, a large cliff of Kaibab Limestone, can be seen at Summitpost.[3] The southwest slope of Fossil Mountain is a highly vegetated (trees), and high angle slope to the prominence.

Below the ~350 ft cliff of Kaibab Limestone is about ~250 ft of vegetated slope-forming Toroweap Formation. The Toroweap sits upon an ~500  cliff-formed, Coconino Sandstone, very vertical, and uneroded, (northeast face of Fossil Mountain, overlooking the canyon). The Coconino sits on large slopes of vegetated Hermit Formation.

Fossil Mountain from Havasupai Point

References
  1. "Fossil Mountain, Arizona". Peakbagger.com. Retrieved January 10, 2021.
  2. "Fossil Mountain - 6,729' AZ". Lists of John. Retrieved January 10, 2021.
  3. (2 photos, Summitpost)


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