🪨 California Rockhounding UpdateWednesday, September 30, 2026

I checked today’s federal and California agency information against Monday’s briefing. The biggest changes are the continued growth of the Dome Fire, a newly confirmed cause for that fire, prescribed burns beginning in Northern California, and a potentially significant Southern California heat event beginning Friday.

🔴 1. Dome Fire — worse than Monday

The Dome Fire north of Wawona Dome in Yosemite has grown to 5,739 acres and 39% containment as of today’s CAL FIRE update. It remains active. CAL FIRE

A significant new development: officials now list the cause as a campfire; reporting today says investigators determined it originated from an abandoned campfire. CAL FIRE

Practical impact: Continue avoiding the southern Yosemite/Wawona fire area. This also matters to members traveling through Mariposa County to legal collecting areas outside the park. Yosemite itself remains subject to National Park Service collecting restrictions.

Official CAL FIRE Dome Fire updates

🔴 2. Southern California — major heat event developing

This is the biggest new field-safety concern.

The National Weather Service has issued an Extreme Heat Watch from Friday, October 2 through Wednesday, October 7 for portions of Southern California, including the Inland Empire and areas of Riverside, San Bernardino, San Diego and Orange counties. National Weather Service

Those counties overlap or border many popular desert-rockhounding travel corridors.

Practical impact: Anyone planning an early-October desert trip should reconsider strenuous midday collecting, especially remote digging locations. Carry substantially more water than normal and don't depend on cell service.

🔥 3. BLM fire restrictions are still very much in effect

Despite the calendar turning to October tomorrow, BLM California continues to list restrictions across multiple field offices.

For northeastern California, restrictions remain in effect on BLM lands in Lassen, Modoc, Plumas, Sierra, Siskiyou and Shasta counties until further notice. Restrictions include limits on campfires, smoking and off-road operation of internal-combustion engines. Bureau of Land Management

Important: Cooler fall weather does not automatically terminate fire restrictions.

BLM California current fire restrictions

🟠 4. New BLM prescribed burns — Lassen County

BLM announced September 28 that prescribed burning on public lands in Lassen County could begin as early as October 1. Bureau of Land Management

For rockhounds, prescribed burns can mean smoke, temporary road/access controls and firefighting vehicles even though there is no wildfire.

Before heading into Lassen-area collecting country tomorrow or later this week, check the local BLM office.

🟠 5. Calaveras Big Trees prescribed fire

California State Parks planned prescribed burns beginning as early as today, September 30, covering approximately 780 acres.

Expected temporary closures include portions of the South Grove Trail, Beaver Creek area, Bradley Grove Trail, South Grove fire road, Walter W. Smith Memorial Parkway south of the Stanislaus River and West Moran Road. Burning depends on weather and air-quality conditions. CA State Parks

This isn't a new rockhounding restriction, but it's important for CA Gold Diggers members traveling through Calaveras County.

🟠 6. Eastern Sierra — Aberdeen closure STILL active

This has not changed since Monday, but it is important enough to repeat.

BLM's Bishop Field Office still lists the lands affected by the Rock Fire and Cinder Complex near Aberdeen as CLOSED because of wildfire hazards and fire-suppression impacts. BLM says the closure will remain until conditions permit safe public use. Bureau of Land Management

The same page confirms that free permits are required for dispersed camping in Alabama Hills, and dispersed camping within the Bishop Field Office is limited to 14 days per year.

Bureau of Land Management

BLM Bishop Field Office alerts and closures

🟠 7. Big Sur — don't mistake highway access for backcountry access

California State Parks was still reporting today that Pfeiffer Big Sur State Park is closed until further notice because of the Timber and Plaskett fires.

Day-use areas at some neighboring parks have reopened, but backcountry trails east of Highway 1 remain closed indefinitely because of fire impacts and repair work. CA State Parks

CAL FIRE's current incident listing shows the Plaskett Fire at 99% containment, while the Timber Fire remains substantially less contained. CAL FIRE

Practical impact: Highway 1 being accessible does not mean surrounding backcountry collecting or exploration areas are accessible.

⚖️ 8. Rockhounding law check — no new statewide ban

I found no newly enacted statewide California or federal rockhounding prohibition today.

Current BLM guidance continues to say that rockhounds may collect reasonable amounts of rocks, mineral specimens and gemstones for personal use on eligible BLM land. Surface searching and hand tools such as pans, shovels and metal detectors may be used when they cause no more than minor surface disturbance, subject to local restrictions and protected areas. Bureau of Land Management

So a claim that “BLM just banned rockhounding in California” would not be supported by the current BLM guidance I found today