Natural Resources
Conservation Service
Major Land Resource Area 015X
Major Land Resource Area
Accessed: 05/06/2026
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Explore the ecological site group description
Next, learn more about the selected ecological site group and its characteristic dynamics by browsing the ecological site group description and exploring alternative state and transition model formats.
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i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
-
i
Key Characteristics
- Site located north of the Columbia River.
- Within a national park soil survey or in an area joining with a national park in the Washington Cascades Range
- NORTH CASCADES NATIONAL PARK
- Site is forested and more than 25 percent is covered with trees
- Site is on east slope of North Cascade Mountains.
- Site is at middle elevations,
- Site is at middle elevations, typically 2,500 to 4,800 feet above sea level but as much as 6,000 feet in some areas. Soils tend to remain moist into summer. Windthrow is an important element in plant community dynamics. Pacific silver fir and Engelmann spruce are the dominant trees. If yes, the site is Low Cryic/Udic East Coniferous (F003XN929WA).
Briefcase
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Ecological site groups
Major Land Resource Areas
Ecological site group photos
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Interactive key
located on riparian areas
F015XY001CAESG – Riparian
F015XY001CAESG – Riparian
located on basin floors
located on terraces
located on alluvial fans
R015XY007CAESG – Alluvial Fan
R015XY007CAESG – Alluvial Fan
located on hills
located on mountains
clayey texture
R015XY002CAESG – Clayey Bottom
R015XY002CAESG – Clayey Bottom
loamy texture
R015XY003CAESG – Loamy Bottom
R015XY003CAESG – Loamy Bottom
clayey texture
R015XY004CAESG – Clayey Terrace
R015XY004CAESG – Clayey Terrace
loamy texture
<20" ppt
R015XY005CAESG – Loamy Terrace <20"ppt
R015XY005CAESG – Loamy Terrace <20"ppt
>20" ppt
R015XY006CAESG – Loamy Terrace >20"ppt
R015XY006CAESG – Loamy Terrace >20"ppt
<20" ppt
R015XY008CAESG – Hills <20"ppt
R015XY008CAESG – Hills <20"ppt
20-40" ppt
R015XY009CAESG – Hills 20-40"ppt
R015XY009CAESG – Hills 20-40"ppt
>40" ppt
F015XY010CAESG – Hills >40"ppt
F015XY010CAESG – Hills >40"ppt
clayey texture
loamy texture
<20" ppt
R015XY011CAESG – Clayey Mountains <20"ppt
R015XY011CAESG – Clayey Mountains <20"ppt
>20" ppt
R015XY012CAESG – Clayey Mountains >20"ppt
R015XY012CAESG – Clayey Mountains >20"ppt
<20" ppt
R015XY013CAESG – Loamy Mountains <20"ppt
R015XY013CAESG – Loamy Mountains <20"ppt
20-40" ppt
R015XY014CAESG – Loamy Mountains 20-40"ppt
R015XY014CAESG – Loamy Mountains 20-40"ppt
>40" ppt
F015XY015CAESG – Loamy Mountains >40" ppt
F015XY015CAESG – Loamy Mountains >40" ppt
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Ecological site group keys
II.
located on basin floors
III.
located on terraces
B.
loamy texture
V.
located on hills
VI.
located on mountains
A.
clayey texture
B.
loamy texture
The Ecosystem Dynamics Interpretive Tool is an information system framework developed by the USDA-ARS Jornada Experimental Range, USDA Natural Resources Conservation Service, and New Mexico State University.
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