Best natural monuments in Boise County showcase a diverse landscape, from serene river valleys to mountainous terrains. This region in Idaho is rich in natural beauty, offering various attractions for outdoor enthusiasts. The area is characterized by its geothermal features, including numerous hot springs, and significant waterways like the Payette River. Visitors can explore a range of natural settings, providing opportunities for different outdoor activities.
Last updated: May 27, 2026
Highlight โข Natural Monument
Tip by
Highlight โข Natural Monument
Tip by
Sign up now to discover places like this
Get recommendations on the best single tracks, peaks, & plenty of other exciting outdoor places.
Sign up for free
Highlight โข Natural Monument
Tip by
Highlight โข Lake
Tip by
Highlight โข Viewpoint
Tip by
Start today with a free account
Your next adventure awaits.
Login or Signup
If you go back to the edge of the campsite, there's tons of pools and a shack with a bathtub. the pools are flowing out from the side of the Hill and there's lots of great places to soak
0
0
This viewpoint offers a great view towards the prominent peaks of the Sawtooth Wilderness. The location was named after Emile Grandjean, a danish immigrant who became an important forester in the region, built a cabin below Grandjean Peak and was later a supervisor of Boise National Forest in the early 20th century.
3
0
The Sacajawea Hot Springs sit right next to Grandjean Road at the South Fork Payette River. There are several pools with different temperatures. There is no actual parking lot at the hot springs, so you will have to squeeze along the road. About three cars might fit at maximum. Please always keep enough space that cars can still pass.
5
0
Pine Flat Hot Springs consists of several small pools nestled along the cliff overlooking the rushing South Fork Payette River. I highly recommend to explore a little to find the best soaking pool for you.
2
0
Bonneville Hot Springs consists of several small and two larger pools of different temperatures next to Warm Springs Creek. It is a very scenic location nestled between rock walls and pine trees. The steaming hot water emerges from above the creek and also from the walls at creek level. There is a wooden structure where you can change into your swim gear that also contains a bathtub.
4
0
The Baron Lakes are a great spot for some peace and quiet with true alpine scenery. The lakes are beautifully nestled between Monte Verita, El Pima, Baron Spire and Cirque Lake Peak. The shortest approach to the lakes is from Redfish Lake. But you can also take a longer hike from the Iron Creek or Grandjean trailheads in the north.
3
0
Boise County offers a diverse range of natural features. You can experience geothermal wonders like Bonneville Hot Springs, known for its scenic pools next to Warm Springs Creek, or the cliffside pools of Pine Flats Hot Springs overlooking the South Fork Payette River. For alpine scenery, Baron Lake & Upper Baron Lake provide tranquil settings nestled between prominent peaks.
Yes, Boise County is well-known for its natural hot springs. Besides the popular Bonneville Hot Springs and Pine Flats Hot Springs, you can also visit Sacajawea Hot Springs, which features several pools of different temperatures right next to Grandjean Road. The Garden Valley area, in particular, is noted for multiple hot springs, sometimes referred to as "Hot Spring Alley," offering various soaking experiences.
The mountainous terrain around Boise County's natural monuments provides numerous hiking options. You can find trails ranging from easy to difficult. For example, the Idaho City area offers the moderate Charcoal Gulch hike and the family-friendly Buena Vista Loop. Near Anderson Ranch Reservoir, the Camp Creek Trail provides a moderately difficult 6-mile hike with significant elevation gain and scenic views. You can explore more options in guides like Hiking in Boise County.
Yes, Boise County offers several family-friendly options. The Buena Vista Loop near Idaho City is an easier, family-friendly trail through the forest. Weilmunster Park in Crouch, along the Middle Fork Payette River, is ideal for picnics, fishing, and leisurely walks on its partially paved trail. Anderson Ranch Reservoir is also popular for activities like boating, fishing, and camping, which can be enjoyed by families.
The best time to visit Boise County's natural monuments largely depends on the activities you plan. Spring and fall offer pleasant temperatures for hiking and exploring hot springs without extreme heat or cold. Summer is ideal for water activities at places like Anderson Ranch Reservoir and whitewater rafting on the Payette River. Some hot springs are accessible year-round, offering a unique experience in winter snow.
Absolutely. Boise County is home to several stunning viewpoints. The Emile Grandjean Viewpoint offers expansive views towards the prominent peaks of the Sawtooth Wilderness. Additionally, the Ponderosa Pine Scenic Byway (ID-21) and the Wildlife Canyon Scenic Byway provide picturesque drives with numerous opportunities to stop and enjoy panoramic vistas of mountains and forests.
Boise County is rich in wildlife. When exploring areas like the Wildlife Canyon Scenic Byway, you might spot diverse animals such as deer, elk, and eagles. The Boise National Forest, which encompasses many of the natural monuments, is a habitat for various species, offering opportunities for wildlife viewing, especially during dawn and dusk.
Yes, Boise County features beautiful natural lakes. Baron Lake & Upper Baron Lake are notable for their true alpine scenery, nestled between majestic peaks. Anderson Ranch Reservoir, a large body of water managed by the Boise National Forest, also provides a refreshing natural monument popular for boating, fishing, and waterskiing.
Camping is a popular activity near many of Boise County's natural monuments. Around Anderson Ranch Reservoir, you'll find several Forest Service campgrounds, including Deer Creek, Curlew Creek, and Fall Creek. Curlew Creek campground, in particular, offers a wide boat ramp and dock space, with vast areas for camping along the beach during low water periods.
Yes, Boise County boasts a couple of highly scenic drives. The Wildlife Canyon Scenic Byway is a picturesque 36-mile route through the Boise National Forest, offering stunning views and chances to spot wildlife. The Ponderosa Pine Scenic Byway (ID-21), leading to Idaho City, also provides breathtaking mountain and forest vistas as it winds through the landscape.
The Payette River, especially in the Garden Valley area, is renowned for its recreational activities. It's a prime destination for whitewater rafting and kayaking, attracting both experienced adventurers and beginners. The river's scenic banks also offer opportunities for fishing and enjoying the natural beauty of the surrounding mountain setting.
For easy hiking trails, consider the Buena Vista Loop near Idaho City, which is a family-friendly walk through the forest. Additionally, the guide Easy hikes in Boise County lists several accessible routes, such as the Sapper's Return to Weasel to Redtail Trail Loop and the Deer Creek Road Trail, which are great for a relaxed outdoor experience.


Extend your search for the best caves by checking out these guides of the top ones in Boise County: