Natural Resources
Conservation Service
Major Land Resource Area 026X
Major Land Resource Area
Accessed: 05/11/2026
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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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Viewing 15 of 15
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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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
-
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
- MOUNT RAINIER NATIONAL PARK
- Site is forested, and more than 25 percent is covered with trees
- Site is composed primarily of coniferous tree species. If yes, go to “m.” m. Site commonly is at an elevation of 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory.
- Site commonly is at an elevation of 3,200 to 7,900 feet above sea level, in the Southern Washington Cascades. Mountain hemlock is present
- Site is on debris aprons of mountain slopes, lahars, cirque floors, and swales of glacial-valley walls. A seasonal high water table is at a depth of 10 to 20 inches from the soil surface some time during the growing season. Common overstory species are mountain hemlock and Alaska cedar. Commonly understory species are Cascade azalea, devilsclub,Southern Washington Cascades Moist High Cryic Coniferous Forest (F003XN950WA).
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Ecological site groups
Major Land Resource Areas
Ecological site group photos
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Interactive key
Additional water
Uplands
Perennial water
026XESG08 – Riparian
026XESG08 – Riparian
Ephemeral water
Subsurface EC >4
026XESG12 – Sandy Bottoms
026XESG12 – Sandy Bottoms
Subsurface EC <4
Sand >50% & clay <25% for surface and subsurface
026XESG12 – Sandy Bottoms
026XESG12 – Sandy Bottoms
Sand <50% or clay >25% for surface and subsurface
026XESG01 – Bottoms
026XESG01 – Bottoms
>75% bedrock outcrop
026XESG07 – Outcrops
026XESG07 – Outcrops
<75% bedrock outcrop
Surface SAR >8, or subsurface EC >8, or surface EC >4
026XESG10 – Saline Hills
026XESG10 – Saline Hills
Surface SAR <8, subsurface EC <8, and surface EC <4
EC >1.5 surface or >2 subsurface
026XESG11 – Saline Uplands
026XESG11 – Saline Uplands
EC <1.5 surface and <2 subsurface
Slope >35% & >40% surface rock
Slope <35% or <40% surface rock
026XESG02 – Breaks
Depth <30cm
026XESG15 – Very Shallow
026XESG15 – Very Shallow
Depth: 30-55cm
026XESG14 – Shallow
026XESG14 – Shallow
Depth >55cm
Rock >30% surface or >30% subsurface
026XESG04 – Deep Rocky
026XESG04 – Deep Rocky
Rock <30% surface and <30% subsurface
Clay >30% surface or >35% subsurface
026XESG03 – Clay Uplands
026XESG03 – Clay Uplands
Clay <30% surface and <35% subsurface
Sand >75% or texture is loamy sand or sandier in surface & subsurface
026XESG13 – Sandy Uplands
026XESG13 – Sandy Uplands
Sand <75% or texture is sandy loam or finer in surface & subsurface
Clay <20% or texture is sandy loam or sandier in surface
026XESG06 – Loamy Uplands
026XESG06 – Loamy Uplands
Clay >20% or texture is finer than sandy loam in surface
026XESG05 – Finer Uplands
026XESG05 – Finer Uplands
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Ecological site group keys
MLRA 26
I.
Additional water
B.
Ephemeral water
2
Subsurface EC <4
II.
Uplands
B.
<75% bedrock outcrop
2
Surface SAR <8, subsurface EC <8, and surface EC <4
ii.
EC <1.5 surface and <2 subsurface
a.
Slope >35% & >40% surface rock
1)
... 026XESG02 – Breaks
b.
Slope <35% or <40% surface rock
3)
Depth >55cm
b)
Rock <30% surface and <30% subsurface
(2)
Clay <30% surface and <35% subsurface
(a)
Sand >75% or texture is loamy sand or sandier in surface & subsurface
... 026XESG13 – Sandy Uplands
(b)
Sand <75% or texture is sandy loam or finer in surface & subsurface
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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