The Last Unroaded Forests
When most people think of protected public land, they think of wilderness.
But wilderness is only part of the story.
The map below shows both designated wilderness and Inventoried Roadless Areas across Northern California’s national forests. Together, they represent the largest remaining undeveloped forest landscapes in the region.
Roadless areas are exactly what the name suggests. They are large areas of national forest that have remained free of roads despite more than a century of road building across the National Forest System. In Shasta-Trinity, Klamath, Lassen, and Trinity, these areas are often high-elevation ridges, backcountry watersheds, and steep forested slopes that are now inaccessible.
How to Read the Map
🟣 Purple: Roadless Rule Areas
These National Forest lands are protected under the 2001 Roadless Area Conservation Rule, which restricts new road construction and most commercial logging.
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🟢 Green: Designated Wilderness Areas
These lands have the highest level of federal wilderness protection under the Wilderness Act. Roads, commercial logging, and permanent development are prohibited.
If protections are removed: Many roadless areas are located on highly visible landscapes, including portions of Mount Shasta and other prominent ridgelines. New roads or timber harvest in these areas could permanently change forest cover, scenic views, and the character of familiar landscapes.
Note on Spatial Access and Boundaries
On this map, certain purple Roadless Areas sit higher up on the peaks or directly behind protected green Wilderness zones. Because federal law strictly prohibits building roads or operating motorized equipment inside the green Wilderness boundaries, accessing these purple areas requires finding entry routes that can include recreation areas.
Why the Roadless Rule Was Created
The Roadless Area Conservation Rule was adopted in 2001 after the Forest Service recognized two realities.
First, it had already built more than 380,000 miles of roads across the National Forest System, creating a maintenance backlog that the agency could not keep up with.
Second, the remaining unroaded forests had become increasingly rare.
Rather than continue expanding the road network into those last undeveloped landscapes, the Roadless Rule prohibited new road construction, road reconstruction, and most commercial timber harvest in Inventoried Roadless Areas.
The goal was straightforward: keep the last large unroaded forests from becoming roaded forests.
Why Roads Matter
Roads permanently change a forest.
Building a road removes vegetation, reshapes hillsides, crosses streams, fragments habitat, and increases human access into previously undeveloped areas. Roads also require ongoing maintenance and create opportunities for additional development that would not be possible without access.
Once a road is built, the landscape rarely returns to its previous condition.
That is why the Roadless Rule focuses on roads. Roads are often the first permanent step toward changing an undeveloped forest.
What Happens if the Roadless Rule Is Removed?
If the rule is removed, none of the protections no longer apply. The forests shown on this map would become available for future road building, timber harvest, and other projects that are currently restricted by the Roadless Rule.
For Northern California, that change matters because many roadless areas are not isolated patches of forest. They connect wilderness areas, protect headwaters, provide habitat for wildlife that depend on large continuous forests, and preserve some of the region’s most recognizable landscapes.
On Mount Shasta and across the surrounding national forests, roadless areas form the forested backdrop that communities see every day. New roads or timber projects in these areas could permanently change forest cover, ridgelines, and the character of landscapes that have remained largely undeveloped for generations.
The Roadless Rule was created to protect these remaining undeveloped forests from becoming part of the expanding network of roads that already crosses the National Forest System. Removing it would open the door to a different future for these landscapes.
Take Action
Protect Northern California’s Roadless Forests
Contact your representatives and ask them to support permanent protections for Inventoried Roadless Areas.