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Ecological Types

Military Pass

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This map area is a basin that is filled with coarse, sandy ALLUVIUM from GLACIAL OUTWASH. The basin is almost level; its elevation is about 6200 feet.

The typical vegetation is almost exclusively lodgepole pine with occasional Shasta red fir. The typical understory is current bush and sedges. On the Military Pass Road at Jack Rabbit Flat coarse-textured alluvium creates droughty soils that won't support conifers. The surrounding area is forested by lodgepole pine with current bushes in the shrub layer.

The most prominent physical feature is Military Pass, named for the road built, in part, by the U.S Army in 1855.

 

The Military Pass area is a basin where high water tables, cold air drainage and persistent snow cover foster open stands of lodgepole pine.
The Military Pass area is a basin where high water tables, cold air drainage and persistent snow cover foster open stands of lodgepole pine. The most common shrub component in these stands is the current bush.
Photograph by Peter Van Susteren
 

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