Natural Resources
Conservation Service
Major Land Resource Area 017X
Major Land Resource Area
Accessed: 04/16/2026
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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 7 of 7
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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 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory
- Site is in depressions and swales and on terraces, glacial-valley walls, and debris aprons that are subject to frequent periods of ponding in April through June. Common tree species are western redcedar, red alder, western hemlock, and Douglas-fir. Southern Washington Cascades Wet Frigid Coniferous Forest (F003XN941WA).
-
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 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory
- Site is in depressions and swales and on terraces, glacial-valley walls, and debris aprons that are subject to frequent periods of ponding in April through June. Common tree species are western redcedar, red alder, western hemlock, and Douglas-fir. Southern Washington Cascades Wet Frigid Coniferous Forest (F003XN941WA).
-
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 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory
- Site is in depressions and swales and on terraces, glacial-valley walls, and debris aprons that are subject to frequent periods of ponding in April through June. Common tree species are western redcedar, red alder, western hemlock, and Douglas-fir. Southern Washington Cascades Wet Frigid Coniferous Forest (F003XN941WA).
-
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 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory
- Site is in depressions and swales and on terraces, glacial-valley walls, and debris aprons that are subject to frequent periods of ponding in April through June. Common tree species are western redcedar, red alder, western hemlock, and Douglas-fir. Southern Washington Cascades Wet Frigid Coniferous Forest (F003XN941WA).
-
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 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory
- Site is in depressions and swales and on terraces, glacial-valley walls, and debris aprons that are subject to frequent periods of ponding in April through June. Common tree species are western redcedar, red alder, western hemlock, and Douglas-fir. Southern Washington Cascades Wet Frigid Coniferous Forest (F003XN941WA).
-
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 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory
- Site is in depressions and swales and on terraces, glacial-valley walls, and debris aprons that are subject to frequent periods of ponding in April through June. Common tree species are western redcedar, red alder, western hemlock, and Douglas-fir. Southern Washington Cascades Wet Frigid Coniferous Forest (F003XN941WA).
-
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 1,600 to 4,600 feet above sea level, in the southern Washington Cascades. Western hemlock typically in the overstory
- Site is in depressions and swales and on terraces, glacial-valley walls, and debris aprons that are subject to frequent periods of ponding in April through June. Common tree species are western redcedar, red alder, western hemlock, and Douglas-fir. Southern Washington Cascades Wet Frigid Coniferous Forest (F003XN941WA).
Briefcase
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Ecological site groups
Major Land Resource Areas
Ecological site group photos
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Basin Landform
Basin Landform
Landform Not As Above
MAP ≥ 10"
R017XY901CAESG – Clayey Basin Group
R017XY901CAESG – Clayey Basin Group
MAP <10"
pH ≥ 8.4
R017XY907CAESG – Aridic Alkali Desert
R017XY907CAESG – Aridic Alkali Desert
pH < 8.4
R017XY901CAESG – Clayey Basin Group
R017XY901CAESG – Clayey Basin Group
Mound and Swale Landscape Over Duripan
R017XY902CAESG – Duripan Vernal Pools
R017XY902CAESG – Duripan Vernal Pools
Not As Above
Site is Sub-Irrigated
Site Is Not Sub-Irrigated
Occasional Flooding (Under Historic Conditions)
R017XY903CAESG – Stream Channels and Floodplains
R017XY903CAESG – Stream Channels and Floodplains
Flooding is Rare
R017XY904CAESG – Subirrigated Deep Alluvial Fans
R017XY904CAESG – Subirrigated Deep Alluvial Fans
MAP ≥ 10"
R017XY905CAESG – Dry Alluvial Fans
R017XY905CAESG – Dry Alluvial Fans
MAP < 10"
pH ≥ 8.4
R017XY907CAESG – Aridic Alkali Desert
R017XY907CAESG – Aridic Alkali Desert
pH < 8.4
R017XY906CAESG – Non-Alkali San Joaquin Valley Desert
R017XY906CAESG – Non-Alkali San Joaquin Valley Desert
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Ecological site group keys
Landform
I.
Basin Landform
B.
MAP <10"
II.
Landform Not As Above
B.
Not As Above
1
Site is Sub-Irrigated
i.
Occasional Flooding (Under Historic Conditions)
... R017XY903CAESG – Stream Channels and Floodplains
2
Site Is Not Sub-Irrigated
ii.
MAP < 10"
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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