The Oregon Coast is a geologically fascinating region, shaped over millions of years by lava flows from the Cascade Range and by the collisions of tectonic plates. The earth itself is constantly in motion here, and the change driven by tectonic activity is one constant that shapes the area.

Oregon beaches are a paradise for agate hunting, attracting rockhounds from near and far. Rivers flowing into the Pacific Ocean carry minerals from the Coast Range. At the same time, the powerful waves and tides of the Pacific remove the upper layers of sand and soil, revealing the treasures hidden beneath.

For a rewarding rockhounding experience at the Oregon Coast, all you need is a keen eye, warm, water-resistant clothing, and perhaps a small scoop or geology pick.

The coastline of the Beaver State is publicly owned, and its beaches are open year-round. While beachgoers can keep what they find, we recommend checking the rules and regulations before collecting.

Tips: How to Spot Agate on the Beach

Top Beaches and Coastal Rivers to Collect Agates

Agates and jaspers can be found along the entire 300-mile stretch of Oregon's coastline, as well as in the beds of rivers flowing into the Pacific Ocean. Numerous spots along the coast are renowned for their excellent agate, jasper, and fossil hunting opportunities.

Please note, however, that the government has set certain limits on agate collection to preserve natural resources. You are not allowed to take more than one gallon of agates per day and no more than three gallons per year.

The best time to collect rocks on the ocean shores is from November to March, when strong storms and king tides uncover agates, jaspers, and other gemstones. The storms can also bring up new rocks, so this is a good time to see fresh finds. Some beaches are good for searching year-round.

For those who prefer rivers as rockhounding locations, summer and early fall are the best seasons, as lower water levels expose gravel bars and riverbeds. The areas where rivers meet the ocean often yield agates and jaspers brought downstream from inland deposits. You can discover many excellent finds in the gravel bars.

Central Oregon Coast

The Central Oregon Coast is an excellent source of high-quality agates, including carnelian, black-blue, enhydro, moss, and sagenitic varieties. If you are looking for jaspers, petrified wood, or fossilized agates, this is your place, too! The beaches from Road's End to Siletz Bay in Lincoln City, and the coastline near Newport, Yachats, and Florence, are among the most productive areas for gem-quality minerals.

The 7.5 miles of beaches in Lincoln City are well-known for producing agates and multicolored jaspers. The 5-mile stretch of Moolack Beach, from Otter Rock to Yaquina Head (about 3 miles north of Newport), is rich in agate, carnelian, jasper, petrified wood, and fossils. Marine fossils, such as shells and bones of sea lions and whales, have also been discovered near Beverly Beach.

High-value bloodstones, as well as carnelian, moss, and sagenitic agates with needle-like inclusions, have been found south of Yachats. Be sure to check the areas around the mouths of creeks, especially those of Big, Bob's, China, Cummins, Tenmile, and Squaw creeks.

Southern Oregon Coast Rockhounding Sites

The South Oregon Coast is full of rocks and treasures to discover. You can find agates, jaspers, petrified wood, fossils, serpentine, and even pieces of jade. The area’s long geological history makes it a great place for rockhounds.

Some of the most productive beaches stretch from Bandon to Port Orford. Long sandy and rocky shores yield quartz, agates, and jaspers, and rare rocks like serpentine and jade are highly prized.

Further south, near Gold Beach and Brookings, rugged cliffs and moving tides uncover hidden treasures all the time. The Rogue River mouth near Gold Beach is especially good for fossils, where you might see remains of ancient sea creatures preserved in rock. At Brookings, the Chetco River deposits a variety of rocks along the shore, including large, noticeable pieces of red, brown, and green jasper.