Canyonlands National Park Chinle Formation

The Chinle Formation is composed of the Shinnarump and Moss Back members. Each has different characteristics due to changes in the depositional environment.


Triassic Period (208 to 245 million years ago)

Depositional Environment

Tropical streams, lakes and swamps


Multi-colored slopes of clay with dark brown sandstone ledges (Moss Back)


Uranium is often found in the Moss Back Member of the Chinle. Though most Uranium mines are in the Morrison Formation , the famous Mi Vida mine in Lisbon Valley was in the Chinle. The multi-colored clays in the Chinle are bentonite (volcanic ash).


Talus slopes immediately below the Wingate cliffs at the Island in the Sky District of Canyonlands.

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November's Featured Park
The North Cascades have long been known as the North American Alps. Characterized by rugged beauty, this steep mountain range is filled with jagged peaks, deep valleys, cascading waterfalls and glaciers. North Cascades National Park Service Complex contains the heart of this mountainous region in three park units which are all managed as one and include North Cascades National Park, Ross Lake and Lake Chelan National Recreation Areas.
November's Animal
Badgers are animals of open country. Their oval burrows (ten inches across and four to six inches high) are familiar features of grasslands on sandy or loamy soils of the eastern plains or shrub country in mountain parks or western valleys.
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