> I've noticed that federal Wilderness areas in Northern California and
> Southern Oregon are mapped as if they are not part of the surrounding
> national forest(s).
> Is this correct mapping? On older USGS maps the Wilderness areas were
> always shown as being enclosed by the surrounding National Forest (or
> other Federal lands).
"The Wilderness Act of 1964 allows Congress to designate wilderness
areas to ensure that America’s pristine wild lands will not disappear.
Wilderness areas can be part of national parks, national wildlife
refuges, national forests or public lands managed by the Bureau of Land
Management." from https://www.doi.gov/blog/americas-public-lands-explained
"Lands designated as
Wilderness are found on portions of the lands administered by Bureau of
Land Management, Fish and Wildlife Service, Forest Service, and
National Park Service."
The Bob Marshall Wilderness is one of the three wilderness areas
composing the BMWC (
the Great Bear, the Scapegoat, and Bob Marshall Wilderness Complex)
. It is has 1,063,503 acres on both
National Forest and the Lewis and Clark National Forest.The
Cedar Mountain Wilderness Area in Utah has U.S. Department of Defense lands
for communications, instrumentation, and electronic tracking systems for the
Utah Test and Training Range.
Mission Mountains Wilderness is bordered by the Salish- Kootenai tribal wilderness - I think there was one wilderness area which ended up crossing tribal lands somewhere. There are state and tribal wilderness areas.
DOE is the fourth largest federal land manage, I'm sure they might have some holding in Wilderness Areas, I know
of Hanford Reach National Monument.
Then you have Wilderness Study Areas. And there are thousands of in holdings, edge holdings, and cherry stem holdings where private, state, and tribal lands fall withing the Wilderness designated boundary.
BLM says of the 418 units of designated wilderness in the 13 Western states, 111, or 27 percent, have in holdings.Nationwide there are 45 million acres of inholdings, an area larger
than the State of Washington.
So the Designation boundary is not necessarily the ownership boundary or the management boundary.