Home
Map
Browse Map
Explore away
Explore Map Collection
Check out our basemaps
Print a Map
Plus
Generate a high-quality PDF
Field Guide
Field Guide
Discover local flora, fauna, geology, and more
Local Flora & Fauna
Learn the ecology of your area
Local Geology
Learn the geologic formation at your feet
Get Started
or
Sign In
Welcome
Sign up to start exploring the one-of-a-kind Natural Atlas Topo map
Continue with Apple
Or
Sign up with Email
Already have an account?
Sign In
MAP
Topo
Waterfalls
Rock Formations
Campgrounds
Trails
Boat Launches
National Parks
State Parks
Scenic Spots
Measure
You must upgrade to measure routes
Start Free Trial
0 ft
Max
0 ft
Copyright
© Natural Atlas
| Roads, Buildings
© OSM Contributors
|
Data Sources
Topo
Ecoregions
Public Lands
...
BASEMAPS
Default Weather
Temperature
Smoke
...
WEATHER
Western Selkirk Maritime Forest
Ecoregion
in
WA
,
ID
Print Map
Generate High-Quality PDF
The Western Selkirk Maritime Forest ecoregion includes the mountainous areas of the Okanogan Highlands west of the Columbia River as well as the narrow valley of the upper Pend Oreille River. Geologically, a significant portion of the region is underlain by the metasediments of the Kootenay Arc and Old Belt deposits. This ecoregion is wetter than the Okanogan Highland Dry Forest (15x) ecoregion to the west because it is influenced by marine air entering the region via the Columbia River Valley. The distribution of trees of dry habitats, such as ponderosa pine and subalpine fir, declines eastward as they are replaced by grand fir and western hemlock. An ash layer aids in soil water retention, increasing forest productivity.
—
EPA
Taxonomy
Classified As
Ecoregion
Search
Search the outdoors
Map
Plans
Field Guide
Community
My Profile
My Trips
0
My Field Notes
0
Notifications
More