Green Valley Trail Hiking & History in Alta, California

Discover the Wild & Scenic Green Valley Trail

Located in the heart of Placer County, the Green Valley Trail is a rugged and rewarding 2.62-mile hike (each way) into the American River canyon.

With a 2,200-foot elevation change, this remote trail descends steeply to a wild and scenic stretch of the North Fork of the American River.

Hikers should be in good physical condition and carry plenty of water. The trail crosses both public and private land—please stay on the path and respect the area’s natural and cultural significance.

Trail Snapshot: Length: 5.2 miles | Difficulty: Difficult | Time to complete: 3.5 hours | Surface: Natural surface | Route type: Out-and-Back | Elevation gain: 2,200 ft.

Honoring the Land - Past, Present & Future

Newly installed interpretive signs at the trailhead offer visitors a chance to explore Green Valley’s rich past.

This visual timeline brings the area’s legacy to life—from its early days as a bustling Gold Rush settlement to its gradual transformation into a preserved public treasure.

The sign shares key moments in Green Valley’s evolution and the partnerships that helped protect it for future generations.

New interpretive signs welcome visitors at the Green Valley trailhead.

Hike in the Historic Footsteps of the 49ers

Green Valley was once home to miners, homesteaders, and travelers who forged rugged lives along the North Fork.

From the mid-1800s through the 20th century, the area served as a waypoint between Foresthill and Iowa Hill.

Over time, the canyon’s natural beauty and cultural value spurred efforts to conserve its unique landscape.

Preserving Our Public Lands

The Green Valley Trail is part of Placer County’s broader mission to protect open space, preserve natural habitats and expand recreational opportunities for residents and visitors.

Through the Placer Legacy Open Space and Agricultural Conservation Program, the county has worked with partners to safeguard thousands of acres of land.

These efforts ensure that places like Green Valley remain accessible and thriving for future generations, balancing conservation with community connection.

If you’re ready for a challenging adventure, the Green Valley Trail rewards hikers with stunning views of the North Fork American River canyon—but preparation is key.

This steep and rocky trail covers approximately 2.62 miles each way, with multiple switchbacks, uneven terrain, and a 2,200-foot elevation change.

The descent may feel deceptively easy, but the climb back out is strenuous and exposed, with limited shade and no reliable cell signal.

Be sure to bring plenty of water, high-energy snacks and wear sturdy hiking boots.

For your safety, stay on official trails and let someone know your plans.

Not quite ready for the full hike? A scenic overlook near the trailhead offers a much easier way to take in the breathtaking landscape.

Whether you venture down to the river or simply pause to admire the view, Green Valley Trail is a reminder of nature’s beauty.

Plan your visit: https://www.placer.ca.gov/6034/Green-Valley-Trail