Southern Utah
Dixie National Forest vs BLM
A lot of southern Utah trips cross the line without a sign you will notice from the truck. Red Canyon, the Markagunt, the Paunsaugunt, Boulder Mountain, and the Pine Valley side of the St. George desert all touch Dixie National Forest. The next drainage can be BLM, state trust, or Zion. Same weekend, three rulebooks.
The rule that does not transfer
BLM casual use — the 25 pounds plus one piece guidance commonly used for “reasonable amounts” under 43 CFR 8365.1-5 — is a Bureau of Land Management rule. It is not a Forest Service rule. Dixie does not inherit it because the rock looks the same.
Forest Service policy generally allows small amounts of rocks and minerals to be collected for personal, noncommercial use on most national forest land without a permit. There is no forest-wide weight limit; some forests define “small amounts” more tightly. Check the local forest and ranger district, current closures, and wilderness or other special areas before you collect. Wilderness, research natural areas, and posted closures can differ. “I read it on a BLM page” does not set the amount.
How the ground is split
- Dixie National Forest: the high plateaus and timbered rims from the Pine Valley Mountains across to Boulder Mountain. Surface is Forest Service. Collecting is a district question, not a west-desert habit.
- BLM Color Country / Cedar City / St. George field offices: the lower desert, many benches, and a lot of the rockhounding people actually mean. Ordinary BLM still starts from casual use, then loses monuments, ACECs, and wilderness.
- SITLA blocks: common on the edges. Trust land is not forest and not BLM. Same fence-line problem.
- Parks and monuments: Zion and Bryce sit against this forest. Those boundaries are closed to collecting. So are most national monument overlays.
What to do on a mixed day
- Turn on the owner layer before you leave pavement. Forest green is not BLM yellow. Read the legend — do not trust a memory of the colors. Which layer.
- If the pin sits on Dixie, stop and read that district’s current recreation or rockhounding note, or call the office. Cedar City, Pine Valley, Powell, and Escalante districts do not share one hobby memo.
- If the pin sits on BLM, run the usual checks: overlay, claim, cap.
- Do not carry a Forest Service rock into a “but BLM allows 25 pounds” argument. The agency on the map is the agency that writes the ticket.
Statewide version of this split: BLM vs Forest Service in Utah. Fishlake, Manti-La Sal, Uinta-Wasatch-Cache, and Ashley follow the same Forest Service policy — check each forest’s own page.
Informational only — not legal advice. Confirm with the Dixie National Forest district and the BLM field office for the unit you are standing on.