Recorded Earthquake History and Seismic Activity near Jim McClure–Jerry Peak Wilderness

Salmon, Challis National Forest: Geography and Protected Land Map in Central Idaho

Extensive alpine ridges and wild river corridors

Spanning over 4.2 million acres, Salmon, Challis National Forest is a foundational protected landscape in Idaho. This area includes the highest peaks in the state, such as Borah Peak, and holds the majority of the Frank Church, River of No Return Wilderness. Utilize this atlas resource to examine the intricate mountain topography, expansive river systems, and the contiguous wild corridors that define this significant portion of the northern Rockies.

Area

17,142.2 km²

Established

1908

Relief

Mountain

Climate

Temperate

Sawtooth National Forest: Geographic Overview and Protected Mountain Boundaries

Central Idaho mountain systems and wilderness corridors

Spanning over two million acres, Sawtooth National Forest defines the heart of the Rocky Mountains in Idaho. This protected landscape contains a complex network of glacial basins, alpine lakes, and varied ecosystems ranging from arid sagebrush foothills to high-altitude peaks. Explore the internal boundaries, drainage systems, and structural geography of this significant wilderness area.

Area

8,540.52 km²

Established

1905

Visitors

1.2M annual

Relief

Mountain

Sawtooth National Recreation Area: Mapping the Protected Landscape of Central Idaho

A vast mountain wilderness of granite peaks and glacier-carved lakes.

The Sawtooth National Recreation Area encompasses a quintessential northern Rocky Mountain terrain defined by the dramatic Sawtooth, White Cloud, and Boulder ranges. This protected landscape preserves over 700,000 acres of high-elevation wilderness, ranging from jagged granite arêtes to the broad, U-shaped Sawtooth Valley, serving as a critical hydrologic anchor for the rivers of the American West.

Area

2,957.7 km²

Established

1972

Relief

Mountain

Climate

Alpine

Frank Church, River of No Return Wilderness: Idaho Protected Mountain and River Landscapes

Discover massive roadless geography and river-carved mountain terrain.

Spanning over 2.3 million acres in central Idaho, the Frank Church, River of No Return Wilderness represents one of the most significant intact roadless landscapes in the lower 48 states. This protected area features a complex mosaic of coniferous forests, high-altitude alpine ridges, and the steep, jagged canyons of the Salmon River, creating a unique geographic profile for regional exploration.

Area

9,578.21 km²

Established

1980

IUCN

Ib

Relief

Mountain

Payette National Forest: Geographic Overview of Idaho's Rugged Mountain Wilderness

Protected granite landscapes and glacial basin geography

Encompassing a vast portion of central Idaho, Payette National Forest represents a significant protected wilderness corridor. The forest geography transitions from granite-based alpine peaks and deep river gorges to dense coniferous slopes, providing essential habitat and extensive trail connectivity throughout the Northern Rockies.

Area

9,419.55 km²

Established

1944

Relief

Mountain

Access

Access unknown

Red Rock Lakes Wilderness: Nature Reserve and Wetland Geography in Beaverhead County

High elevation marshes and protected water basins.

Red Rock Lakes Wilderness preserves an extensive high-elevation wetland complex in Beaverhead County, Montana. This nature reserve, characterized by shallow lake basins and forested mountain ridges, serves as a vital ecological corridor in the Northern Rockies. Its protected landscape offers a study in water-driven geography, where remote marshes and reflective lakes define the terrain's character.

Area

130.9 km²

Established

1976

IUCN

Ib

Relief

Upland

Little Jacks Creek Wilderness: Mapping Idaho Canyon Country and Protected Landscapes

Basalt plateau and stream-cut gorge geography

Little Jacks Creek Wilderness protects a significant high-desert landscape in Idaho characterized by deep canyons and sagebrush-covered plateaus. As part of the Owyhee Canyonlands, this wildlife reserve highlights the geologic interplay of dark basalt and red rhyolite cliffs, providing a stable, undisturbed terrain for geographic and ecological study.

Area

206.1 km²

Established

2009

IUCN

Ib

Relief

Upland

Hells Canyon National Recreation Area: Geologic Boundaries and Snake River Corridor Atlas

Deep canyon terrain and archaeological heritage in the American Northwest

This protected landscape encompasses the profound depth of the Snake River gorge, featuring rugged basalt cliffs and diverse forested uplands. The area serves as a significant intersection of natural history and ancient cultural presence, providing a detailed look at the topographic complexity defining the Oregon and Idaho boundary region.

Area

2,641 km²

Established

1975

Relief

Mountain

Climate

Temperate