Historical Earthquake Records and Recorded Seismic Activity Near Mount Hood National Forest

Mark O. Hatfield Wilderness: An Atlas of Basalt Canyons and Cascade Mountain Terrain

Protected rugged wilderness located in Oregon

Spanning from the Columbia River Gorge to the slopes of Mount Hood, the Mark O. Hatfield Wilderness preserves an array of forest stands, hanging meadows, and steep ridgelines. The area serves as a critical geographic hub within the Cascade Range, offering detailed insight into the volcanic geology and drainage systems that shape this iconic portion of Oregon.

Area

266.37 km²

Established

1984

IUCN

Ib

Relief

Mountain

Mount Hood National Recreation Area: Oregon Protected Landscape and Regional Geography

A three-unit recreational forest landscape in the Cascade Range.

Spanning over 34,000 acres, this protected landscape frames the lower volcanic slopes and forested drainages around Mount Hood. The area integrates river corridors, wilderness boundaries, and subalpine terrain, offering a clear view of the complex topography that defines the Cascade Range in northern Oregon.

Area

139.8 km²

Established

2009

Relief

Mountain

Climate

Temperate

Mount Hood Wilderness: Atlas of Volcanic Peaks and Glacial Geography in Oregon

High-altitude protected landscapes and forest ecosystems

This protected area captures the dramatic character of the Cascade Range through its signature volcanic terrain, ancient forests, and high-alpine ridges. Covering a vast vertical range, the wilderness offers a study in geologic forces, featuring active glaciers, deep basaltic canyons, and meadows that define the mountain's northern and western slopes.

Area

262 km²

Established

1964

IUCN

Ib

Visitors

10K annual

Roaring River Wilderness: Geography and Protected Area Atlas of Oregon

Ancient forest corridors and alpine lake landscapes

Roaring River Wilderness is a federally protected landscape in Oregon, defined by steep, tree-covered ridges and the vigorous Roaring River. This wilderness preserves a dense mosaic of old-growth conifers, high-elevation alpine lakes like Serene and Shellrock, and important salmon-spawning waters within the broader Mount Hood National Forest geography.

Area

148 km²

Established

2009

IUCN

Ib

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

Gifford Pinchot National Forest: Geographic Overview of Washington's Volcanic Cascade Protected Lands

Mapping volcanic peaks, deep river canyons, and old-growth wilderness corridors

Gifford Pinchot National Forest represents a major protected expanse in the Washington Cascades, characterized by a complex volcanic topography that includes active craters, cinder cones, and rugged lava fields. This atlas entry details the forest's primary geographic features, from the high-elevation alpine terrain of the Goat Rocks to the river-carved valleys of the Lewis and Cowlitz systems, providing essential context on this integral Pacific Northwest protected landscape.

Area

5,347.95 km²

Established

1908

Visitors

1.8M annual

Relief

Mountain

Indian Heaven Wilderness: Volcanic Plateau Geography and Protected Cascade Landscapes

Volcanic peaks, high-elevation lakes, and expansive meadows in Washington.

Indian Heaven Wilderness encompasses a broad volcanic plateau in the southern Washington Cascades, famous for its dense concentration of lakes, ponds, and volcanic landforms. The area features a complex mosaic of cinder cones, shield volcanoes, and subalpine forests, offering a unique geographic perspective on the Pacific Northwest. Delve into the protected boundaries and mapped terrain of this significant wilderness area.

Area

84.1 km²

Established

1984

Visitors

8K annual

Relief

Mountain

Middle Santiam Wilderness: Geographic Atlas and Protected Landscape Overview of the Oregon Cascades

Old-growth forest basins and volcanic landmarks in the Willamette National Forest.

Middle Santiam Wilderness represents a distinct segment of the central Oregon Cascades. The area is defined by its substantial old-growth coniferous forests, including 450-year-old Douglas-fir and western hemlock stands, alongside the striking 4,965-foot volcanic plug known as Chimney Peak. This map-focused record traces the river-cut valleys and high-ridge topography that shape this protected habitat.

Area

34.57 km²

Established

1984

IUCN

Ib

Relief

Mountain