Green Creek (Willapa Hills)

Green Creek sits in the Willapa Hills of Lewis County, Washington, north of the community of Holcomb — part of a broader southwest Washington region well known among rockhounds for carnelian agate [1][2]. The Willapa Hills produce carnelian — the local red-orange chalcedony variety — alongside agate, jasper, and dark petrified wood, all washed into the area's stream gravels, including tributaries of the Chehalis and Newaukum rivers [2]. The catch is access: most of the surrounding Willapa Hills is gated private timberland, and at least one regional source is blunt about it — permission is required, and it's "not unusual for the police to be called to talk with unwanted rock hounds digging on private property" [2]. Good material, real risk if you don't nail down permission first.

Green Creek is north of Holcomb in Lewis County, in the Willapa Hills of southwest Washington [1]. UNVERIFIED: no specific road, pull-off, or public parking area was confirmed — this is private timberland country, and the practical "getting there" question is really a permission question (see below), not a directions question.

General-area inference based on how Willapa Hills carnelian/agate hunting works elsewhere in the region: gravel-bar and streambed surface collecting, no digging equipment typically needed beyond hand tools, working exposed gravel after high water. No site-specific method was confirmed for Green Creek itself.

Most of the surrounding Willapa Hills is gated private timberland, not open public ground [2]. A regional source specifically warns that unpermitted rockhounding on this private land has led to police being called on collectors [2]. Land manager is private (likely timber company holdings, though the specific owner at Green Creek wasn't confirmed). Do not assume access — locate and contact the landowner or timber company managing this specific parcel before attempting to collect, and expect gates and posted signage to be enforced.