Chandler Mt.: Purple Agate & Carnelian Rockhounding in Linn County, Oregon

Updated June 2026

Chandler Mt. is a mapped rockhounding spot in Linn County, Oregon. Reported finds include purple agate, carnelian, blue agate. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Linn County
State: Oregon
Coordinates: 44.34034, -122.69762

Geology at Chandler Mt.

This spot sits on ground mapped as Early Western Cascade Volcanics that formed roughly 23 to 5 million years ago. Volcanic ground like this is where agate, jasper, and other chalcedony typically form, filling old gas pockets and fracture seams in the flow rock.

Mapped unit: Early Western Cascade Volcanics
Age: 23–5 Ma (Miocene)
Elevation: 2,130 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 Chandler Mt.

Best months: February to November. Typical highs run 76°F in midsummer and 42°F in midwinter, with winter lows near 29°F.

Climate normals: NOAA 1991-2020 monthlies, FOSTER DAM station (5 mi away), adjusted for elevation.

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 Oregon/Washington — Rockhounding & mineral material
Oregon Department of Geology and Mineral Industries (DOGAMI)
Oregon Parks and Recreation Department — beach collecting rules
Community submissions reviewed against published agency rules

Found at Chandler Mt.

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

Nearby rockhounding spots

Other rockhounding spots within driving distance of Chandler Mt..

Chandler Mt. FAQ

Where is Chandler Mt.?+

Chandler Mt. is in Linn County, Oregon, at 44.34034, -122.69762.

What rocks and minerals can you find at Chandler Mt.?+

Chandler Mt. is reported to produce Purple Agate, Carnelian, Blue Agate.

Is collecting allowed at Chandler Mt.?+

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 Chandler Mt.?+

Most agate and jasper is surface float: bring a spray bottle, a pick or small shovel, and a sturdy bag. Wet stones show their banding and translucence.

When is the best time to visit Chandler Mt.?+

The most comfortable months at Chandler Mt. are February to November.

How do I get to Chandler Mt.?+

Open the directions link to navigate to 44.34034, -122.69762 in Google Maps. Some spots are remote, so check road conditions before driving out.

More rockhounding in Oregon

See all 177 Oregon spots →

Open Chandler Mt. on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.