RockHoundR
Download on the App StoreGet it on Google Play

South Umpqua River - Rest Area: Agate & Jasper Rockhounding in Douglas County, Oregon

Updated August 2026

South Umpqua River - Rest Area is a mapped rockhounding spot in Douglas County, Oregon. Reported finds include agate, jasper, carnelian, quartz, schist, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Map showing South Umpqua River - Rest Area in Douglas County, Oregon

Quick details

Access
Check locally
State
Oregon
Nearest road
Tiller Trail Highway

Geology at South Umpqua River - Rest Area

This spot sits on Western Klamath Terrane; Rogue Valley Subterrane, mapped as schist, black, gray, shale, and mudstone that formed roughly 200 to 145 million years ago. Metamorphic rock like this weathers into resistant float, and minerals that survive transport typically concentrate in nearby drainages.

Mapped unit
Western Klamath Terrane; Rogue Valley Subterrane
Age
200–145 Ma (Jurassic)
Rock types
schist, black, gray, shale, and mudstone
Elevation
980 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 South Umpqua River - Rest Area

Conditions here are workable year-round, with typical highs from 52°F in winter to 87°F in summer.

Climate normals: NOAA 1991-2020 monthlies, RIDDLE station (19 mi away), adjusted for elevation.

Land & collecting status

Confirm rules before collecting

Land status here is not confirmed. Verify with the managing agency before collecting — federal, state, and tribal rules differ.

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:

Found at South Umpqua River - Rest Area

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 South Umpqua River - Rest Area.

Across the state line from South Umpqua River - Rest Area

South Umpqua River - Rest Area is close enough to the Oregon border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

South Umpqua River - Rest Area FAQ

Where is South Umpqua River - Rest Area?+
South Umpqua River - Rest Area is in Douglas County, Oregon, at 42.93237, -122.99157. Nearest road: Tiller Trail Highway.
What rocks and minerals can you find at South Umpqua River - Rest Area?+
South Umpqua River - Rest Area is reported to produce Agate, Jasper, Carnelian, Quartz, Schist, Petrified Wood.
Is collecting allowed at South Umpqua River - Rest Area?+
Confirm rules before collecting. Land status here is not confirmed. Verify with the managing agency before collecting — federal, state, and tribal rules differ. Always confirm current rules with the managing agency before a trip.
What tools should I bring to South Umpqua River - Rest Area?+
A rock hammer, sturdy gloves, and a padded bag cover petrified wood hunting. Most pieces are surface float, so walking slopes and washes beats digging.
When is the best time to visit South Umpqua River - Rest Area?+
South Umpqua River - Rest Area is workable year-round.
How do I get to South Umpqua River - Rest Area?+
Open the directions link to navigate to 42.93237, -122.99157 in Google Maps. The nearest road is Tiller Trail Highway.

More rockhounding in Oregon

See all 177 Oregon spots →

Open South Umpqua River - Rest Area on the map

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

Download on the App StoreGet it on Google Play