Recorded Earthquake History and Seismic Activity near Oregon Dunes National Recreation Area

Siuslaw National Forest: Oregon Coast Range and Protected Landscape Geography

Coastal dunes, temperate rainforests, and river networks

Explore the mapped boundaries and natural geography of Siuslaw National Forest. This protected landscape highlights the ecological transition from Pacific shorelines to the high-elevation forests of the Oregon Coast Range, encompassing sand dune systems, salmon-supporting streams, and significant wilderness refuges.

Area

2,566.54 km²

Established

1908

Visitors

1M annual

Climate

Temperate

Rock Creek Wilderness: Coastal Forest Geography and Protected Terrain

Oregon wilderness with undisturbed temperate rainforest watersheds

Discover the geographic identity of Rock Creek Wilderness, a congressionally designated area on the Oregon Coast. This protected block of temperate rainforest is characterized by its trail-free, road-free interior and its role as a sanctuary for old growth Douglas-fir and rare butterfly habitat. The watershed terrain, centered around Rock and Big Creeks, preserves a continuous ecological gradient stretching from inland ridges to the Pacific maritime climate.

Area

30.29 km²

Established

1984

IUCN

Ib

Relief

Upland

Drift Creek Wilderness: Protected Wildlife Reserve and Old Growth Geography in Oregon

Mapping the old growth forests and stream corridors of the Coast Range.

Deep within Oregon's Coast Range, Drift Creek Wilderness stands as a significant protected landscape known for its intact old growth Sitka spruce and western hemlock stands. The terrain is characterized by steep, dissected slopes and narrow valleys that form a complex, moss-heavy temperate rainforest ecosystem. This area provides essential habitat for Roosevelt elk, northern spotted owls, and wild salmon populations, offering a compact yet dense look at the region's unique coastal wilderness geography.

Area

23.46 km²

Established

1984

IUCN

Ib

Relief

Upland

Rogue River, Siskiyou National Forest: Mapped Geography and Protected Area Overview

Tracing volcanic peaks and river-carved mountain terrain in Oregon

Spanning nearly 7,300 square kilometers, the Rogue River, Siskiyou National Forest acts as a crucial ecological anchor in the Pacific Northwest. This overview details its unique mountain geography, the extensive wilderness tracts within its boundaries, and the river systems that define its mountainous character.

Area

6,973.46 km²

Established

2004

Visitors

915K annual

Relief

Mountain

Willamette National Forest: Geography and Protected Landscapes of the Central Oregon Cascades

Mapped terrain, old-growth forests, and protected wilderness boundaries.

Explore the expansive territory of Willamette National Forest, a primary protected area extending over 100 miles along Oregon's Cascade Range. This region features volcanic peaks exceeding 10,000 feet, extensive old-growth Douglas-fir stands, and a dense network of Wild and Scenic rivers, providing a detailed look at the geographic character and ecological heritage of the Pacific Northwest.

Area

6,790.75 km²

Established

1933

Visitors

1.7M annual

Relief

Mountain

Kalmiopsis Wilderness: Mapping the Protected Landscapes and Geology of Southwestern Oregon

Botanical richness and dramatic canyon terrain in the Klamath Mountains

Kalmiopsis Wilderness preserves a dramatic landscape of steep ridges and river-cut valleys across 180,000 acres in southwestern Oregon. Known for its distinct serpentine soils and high botanical diversity, the wilderness area offers a look at complex mountain ecology and significant Wild and Scenic River headwaters within the Rogue River-Siskiyou National Forest.

Area

727.44 km²

Established

1964

IUCN

Ib

Relief

Mountain

Rogue-Umpqua Divide Wilderness: Protected Ridge Landscape and Watershed Geography

High-country wilderness area in southwestern Oregon

Rogue-Umpqua Divide Wilderness preserves a dense, high-elevation ridge environment that separates the Rogue and Umpqua river drainages. Featuring a complex mix of volcanic and sedimentary rock outcrops within a continuous conifer canopy, the area offers a unique look at forest ecology in the Klamath Mountains. The geography provides extensive views across both watersheds and stands as a primary example of protected montane forest terrain within the Oregon landscape.

Area

134 km²

Established

1984

IUCN

Ib

Water

Minor water

Menagerie Wilderness Wildlife Reserve: Oregon Cascade Range Geography and Rock Pinnacles

Protected Cascade mountain terrain and unique crag clusters

Situated in the central Cascade Range of Oregon, Menagerie Wilderness provides a compact, highly defined landscape of rising rock pinnacles and lush coniferous forest. This resource traces the unique topography and protected boundaries of this specialized wilderness area, offering insight into the geological features and forest ecosystems that distinguish it from surrounding mountainous terrain.

Area

20.37 km²

Established

1984

IUCN

Ib

Relief

Mountain