Moran in Teton County, Wyoming — The American West (Mountains)
Grand Teton National Park
Mt. Moran reflects all the geologic forces shaping the Teton Range. Formed of a massive block of metamorphic gneiss; cut by dikes of igneous granite and diabase; capped by sedimentary sandstone; and flanked by glaciers, this formidable peak dominates the park’s northern skyline.
The gneiss and granite are among the oldest rocks in North America, 2.7 and 2.5 billion years old respectively. These resistant rocks form the core of the Teton Range. The vertical “Black Dike” of 775 million year old diabase is about 150 feet wide and juts from the mountain’s face because the surrounding gneiss has eroded away.
Erected by National Park Service.
Location. 43° 48.205′ N, 110° 38.494′ W. Marker is in Moran, Wyoming, in Teton County. Marker is on Teton Park Road, on the right when traveling south. Touch for map. Marker is located in the Mount Moran Turnout in Grand Teton National Park. Marker is in this post office area: Moran WY 83013, United States of America.
Other nearby markers. At least 8 other markers are within 5 miles of this marker, measured as the crow flies. Potholes (approx. 0.7 miles away); Teton Fault (approx. 2.8 miles away); Tetons Inspiring Creativity (approx. Capturing Nature in a Box (approx. 3˝ miles away); Meandering Snake (approx. 3˝ miles away); The Cathedral Group (approx. 3.7 miles away); a different marker also named The Cathedral Group (approx. 3.7 miles away); Cascade Canyon (approx. 4.1 miles away). Touch for a list and map of all markers in Moran.
More about this marker. The background of the marker features a photo of Mount Moran. There are two photographs at the bottom of the marker. One depicts the top of the mountain and has a caption of “Tan sandstone caps the summit of this massive peak the remnant of a 510 million year-old beach that stretched for hundreds of miles north and south of here. Sandstone overlies the Black Dike and other ancient igneous and metamorphic rocks.” Another photo of the Falling Ice Glacier atop Mount Moran includes the caption “Five glaciers – Falling Ice, Skillet and Triple – flank Mount Moran. These glaciers formed during a cool period called the Little Ice Age that ended around 1850 AD. Over the past 40 years, the park’s glaciers have shrunk by more than 20 percent due to
Categories. • Natural Features •
Credits. This page was last revised on June 16, 2016. This page originally submitted on September 5, 2015, by Bill Coughlin of North Arlington, New Jersey. This page has been viewed 219 times since then and 15 times this year. Photos: 1, 2, 3, 4, 5. submitted on September 5, 2015, by Bill Coughlin of North Arlington, New Jersey.