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Data Sources
Topo
Ecoregions
Public Lands
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BASEMAPS
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Temperature
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WEATHER
Sedimentary Subalpine Zone
Ecoregion
in
Rocky Mountains
in
WY
,
ID
,
MT
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The Sedimentary Subalpine Zone ecoregion is found southeast of Yellowstone National Park, in the overthrust belt, and in the northwest corner of the Bighorn Mountains in areas underlain by faulted and folded Mesozoic and Paleozoic sedimentary rocks (limestone, dolomite, shale, and sandstone). Elevations range between 8,500 feet and 10,000 feet. Relatively high precipitation amounts, areas of heavy snowpack, and snow with high water content provide enough moisture to support spruce-fir forest on the normally droughty sedimentary substrates. Potential natural vegetation includes subalpine fir and Engelmann spruce, with lodgepole pine as a seral species. However, tree growth is limited in fine-grained shale-derived soils which results in a landscape that alternates between forest groves and open grassy slopes.
—
EPA
Plants
Sandberg Bluegrass
Poa secunda (species)
39
Observations
JAN - DEC
Grouse Whortleberries
Vaccinium scoparium (species),
“Grouseberry”, “Littleleaf Huckleberry”
36
Observations
JAN - DEC
Spiny Phlox
Phlox hoodii (species)
35
Observations
JAN - DEC
Yellow Rabbitbrush
Chrysothamnus viscidiflorus (species)
34
Observations
JAN - DEC
Indian Ricegrass
Eriocoma cuspidata (species),
“Indian Mountain Ricegrass”, “Mountain-Rice”
32
Observations
JAN - DEC
See All
Animals
Moose
Alces alces (species),
“Eurasian Elk”, “Eurasian Moose”, “European Elk”, “Siberian Elk”
7
Observations
JAN - DEC
Boreal Chorus Frog
Pseudacris maculata (species)
1
Observation
JAN - DEC
Golden-Mantled Ground Squirrel
Callospermophilus lateralis (species)
1
Observation
JAN - DEC
Yellow-Bellied Marmot
Marmota flaviventris (species),
“Rock Chuck”
1
Observation
JAN - DEC
Birds
Clark's Nutcracker
Nucifraga columbiana (species)
365
Observations
JAN - DEC
Dark-Eyed Junco
Junco hyemalis (species)
338
Observations
JAN - DEC
Mountain Chickadee
Poecile gambeli (species),
“Parus Gambelli”
312
Observations
JAN - DEC
Red-Tailed Hawk
Buteo jamaicensis (species),
“Chickenhawk”
303
Observations
JAN - DEC
Common Raven
Corvus corax (species),
“Raven”, “Northern Raven”
293
Observations
JAN - DEC
See All
Insects
Bombus centralis
SPECIES ·
“Central Bumble Bee”
5
Observations
JAN - DEC
Rhyacophila hyalinata
SPECIES
3
Observations
JAN - DEC
Oligophlebodes ruthae
SPECIES
2
Observations
JAN - DEC
Small Pearl-Bordered Fritillary
Boloria selene (species),
“Silver-Bordered Fritillary”
2
Observations
JAN - DEC
Boloria kriemhild
SPECIES ·
“Relict Fritillary”
2
Observations
JAN - DEC
See All
Taxonomy
Region
49
Ecoregion
Classified As
Ecoregion
Sedimentary Subalpine Zone
Sedimentary Subalpine Zone
Sedimentary Subalpine Zone
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