Neptune Beach (Cummins Creek): Agate & Jasper Rockhounding in Lane County, Oregon

Plan your visit

Generally open to casual rockhounding

County

Lane County

State

Oregon

Nearest road

Oregon Coast Highway

Coordinates

44.26489, -124.10785

Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.

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.

Best time to visit Neptune Beach (Cummins Creek)

Comfortable months (45 to 90°F highs)

Conditions here are workable year-round, with typical highs from 53°F in winter to 64°F in summer.

Climate normals: NOAA 1991-2020 monthlies, YACHATS station (5 mi away).

Geology at Neptune Beach (Cummins Creek)

This spot sits on surficial deposits; Beach deposits, mapped as gravel, sand, and dune sand that formed within roughly the last 3 million years. Petrified wood typically travels as tough float, and worked gravels like these are exactly where weathered pieces tend to collect.

Mapped unit

surficial deposits; Beach deposits

Age

3 Ma to present (Quaternary)

Rock types

gravel, sand, and dune sand

Elevation

50 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.

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