Jones Beach: Olivine Rockhounding in Siskiyou County, California

Updated June 2026

Jones Beach is a mapped rockhounding spot in Siskiyou County, California. Reported finds include olivine. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Siskiyou County
State: California
Nearest road: Scott River Road
Postcode: 96032
Coordinates: 41.63977, -123.05988

Geology at Jones Beach

This spot sits on Undivided pre-Cenozoic metavolcanic rocks, unit 2 (undivided), mapped as mafic volcanic and greenstone that formed roughly 540 to 66 million years ago. Volcanic ground like this weathers into rocky slopes and float, and fresh exposures in cuts and drainages are usually the most productive places to look.

Mapped unit: Undivided pre-Cenozoic metavolcanic rocks, unit 2 (undivided)
Age: 540–66 Ma (Paleozoic to Mesozoic)
Rock types: mafic volcanic and greenstone
Elevation: 2,570 ft

Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.

Best time to visit Jones Beach

Best months: September to June. Typical highs run 93°F in midsummer and 47°F in midwinter, with winter lows near 28°F.

Climate normals: NOAA 1991-2020 monthlies, YREKA station (22 mi away).

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

State guidance last verified: April 1, 2026

BLM California, Recreational mineral collecting
California Geological Survey
CDFW, Suction Dredge Mining Permit Program
Community submissions reviewed against published agency rules

Found at Jones Beach

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Olivine

Nearby rockhounding spots

Other rockhounding spots within driving distance of Jones Beach.

Across the state line from Jones Beach

Jones Beach is close enough to the California border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Jones Beach FAQ

Where is Jones Beach?+

Jones Beach is in Siskiyou County, California, at 41.63977, -123.05988. Nearest road: Scott River Road.

What rocks and minerals can you find at Jones Beach?+

Jones Beach is reported to produce Olivine.

Is collecting allowed at Jones Beach?+

Generally open to casual rockhounding. Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Jones Beach?+

A rock hammer, sturdy gloves, safety glasses, and a collecting bag cover the basics here. Add a spray bottle: wet rock shows color and pattern that dry rock hides.

When is the best time to visit Jones Beach?+

The most comfortable months at Jones Beach are September to June.

How do I get to Jones Beach?+

Open the directions link to navigate to 41.63977, -123.05988 in Google Maps. The nearest road is Scott River Road.

More rockhounding in California

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