Swiftwater Park: Agate & Jasper Rockhounding in Douglas County, Oregon
- Minerals reported
- 5
- Elevation
- 790 ft
- Best months
- Year-round
Swiftwater Park is a mapped rockhounding spot in Douglas County, Oregon. Reported finds include agate, jasper, quartz, carnelian, petrified wood. Below: coordinates, access notes, nearby spots, and trip-planning links.
Plan your visit
Confirm rules before collecting
- County
- Douglas County
- State
- Oregon
- Nearest road
- North Umpqua Highway
- Coordinates
- 43.33306, -123.00476
Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.
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.
Best time to visit Swiftwater Park
Comfortable months (45 to 90°F highs)
Conditions here are workable year-round, with typical highs from 47°F in winter to 85°F in summer.
Climate normals: NOAA 1991-2020 monthlies, IDLEYLD PARK 4 NE station (3 mi away), adjusted for elevation.
Geology at Swiftwater Park
This spot sits on Early Western Cascade Volcanics, mapped as andesite flows, plagioclase, clinopyroxene phenocrysts, and flow breccia that formed roughly 56 to 23 million years ago. Petrified wood typically comes from volcanic ash beds like the ones associated with this ground, where buried forests were slowly replaced by silica.
- Mapped unit
- Early Western Cascade Volcanics
- Age
- 56–23 Ma (Eocene to Oligocene)
- Rock types
- andesite flows, plagioclase, clinopyroxene phenocrysts, and flow breccia
- Elevation
- 790 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.
Today's weather
Is today a good day to go?
The app shows live weather, recent rain, and a daily rockhounding score for Swiftwater Park.
Get the appSources & 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:
- 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 Swiftwater Park
Each name 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 Swiftwater Park.
- N Umpqua RiverDouglas County, Oregon · 4 mi awayAgate, Chalcedony, Carnelian
- Umpqua RiverDouglas County, Oregon · 21 mi awayOregon Jade
- S Umpqua RiverDouglas County, Oregon · 23 mi awayAgate, Chalcedony, Carnelian
- South Fork Umpqua River - Myrtle CreekDouglas County, Oregon · 26 mi awayAgate, Jasper, Quartz
- South Umpqua BridgeDouglas County, Oregon · 26 mi awayQuartz, Agate, Jasper
- South Umpqua River - Rest AreaDouglas County, Oregon · 28 mi awayAgate, Jasper, Carnelian
- South Umpqua River Gravel BarsDouglas County, Oregon · 28 mi awayAgate, Jasper, Carnelian
- Nickel Mountain Mine - RiddleDouglas County, Oregon · 35 mi awayGarnierite, Chrysoprase
Swiftwater Park FAQ
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More rockhounding in Oregon
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Open Swiftwater Park on the map
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