Siuslaw National Forest, Nature reserve on Oregon coast, United States.

Siuslaw National Forest is a nature reserve on the Oregon coast that spans across a large area of land. It features coastal forests, sand dunes, and rocky shores where forest meets the Pacific Ocean.

The Siuslaw National Forest was established in 1908, the date given by the English-language sources; the Chinese Wikipedia article states 1998, a discrepancy worth noting. Its three wilderness areas — Drift Creek, Cummins Creek and Rock Creek — were all designated in 1984. A 1993 Forest Service study estimated 33,800 acres of old growth within the forest.

Three designated wilderness areas within the forest - Drift Creek, Cummins Creek, and Rock Creek - maintain natural heritage through conservation practices.

The forest has multiple campgrounds that accommodate both tent camping and recreational vehicles. Visitors can easily find lodging options and basecamp locations for day trips.

Marys Peak, at 4,097 feet (1,249 m), is the highest point in the Oregon Coast Range, and the forest surrounds it. A 1993 Forest Service study estimated 33,800 acres (13,700 ha) of old growth remained in the forest, some of it held in the Cummins Creek and Rock Creek wildernesses.