Three Island Crossing State Park

Adventure Rating

Three Island Crossing State Park in Idaho invites van lifers to relive history and immerse themselves in outdoor adventures. From exploring the Oregon Trail to hiking scenic trails, fishing in the Snake River, and camping under the stars, this park offers diverse experiences for nature and history enthusiasts alike.


Embark on hiking trails that wind through the park’s beautiful landscapes. The Snake River Overlook Trail offers panoramic views of the Snake River, while the Oregon Trail Interpretive Trail provides insights into the historic journey of pioneers. Nature lovers can revel in the sights and sounds of the great outdoors.


Cast your line into the Snake River for a chance to catch a variety of fish species, including trout and catfish. The river’s calm waters make it an ideal spot for fishing from the shoreline or a kayak, providing van lifers with a peaceful and rewarding angling experience.

The Oregon Trail

Step back in time as you explore a segment of the historic Oregon Trail. Wander along the trail’s ruts and imagine the challenges faced by pioneers as they crossed this rugged terrain in their quest for a better life in the West. Gain a profound appreciation for their perseverance.


Camp in the park’s serene surroundings, with options like the Three Island Crossing Campground offering facilities for van lifers. Fall asleep to the soothing sounds of the Snake River and wake up to breathtaking sunrises over the horizon—a perfect escape for those seeking a tranquil outdoor retreat.

Park History

Delve into the park’s rich history, including its role as a significant crossing point along the Oregon Trail. Learn about the challenges and triumphs of pioneers who traversed this region, forging a path that shaped the course of American history.

Park Information

Before visiting Three Island Crossing State Park, familiarize yourself with park rules and guidelines. Check for any trail closures, fishing regulations, and campground availability. A visit to the park’s visitor center can provide you with additional historical and practical information.


Three Island Crossing State Park offers van lifers a captivating blend of outdoor recreation and historical exploration. From hiking in the footsteps of pioneers to fishing in the Snake River’s waters, each adventure offers a unique connection to the past and the natural beauty of Idaho’s landscapes.

It’s a privilege to have Three Island Crossing State Park for our enjoyment, so please practice Leave No Trace principles.


Directions from Boise, Idaho, to Three Island Crossing State Park:

1. Start your journey in Boise, Idaho.
2. Head east on I-84 E (Interstate 84 East) toward Mountain Home.
3. Continue on I-84 E for approximately 45 miles.
4. Take Exit 95 for Simco Road toward Glenns Ferry/Three Island Crossing.
5. Turn left onto Simco Road and continue for about 1 mile.
6. Turn right onto Old Oregon Trail Road, following signs for Three Island Crossing State Park.
7. Continue on Old Oregon Trail Road for approximately 2.5 miles.
8. You will reach the entrance of Three Island Crossing State Park.

Note: While these directions provide a general route, it’s always a good idea to use a navigation app or GPS device to ensure accuracy and receive real-time updates on road conditions. Additionally, check for any closures or changes to the route before your trip.

References and Links:


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