The Ponderosa Pine scenic byway is located in west-central Idaho near Boise. It can be accessed from the south at Exit 57 on I-84. It then heads north across the Boise National Forest to end in Stanley. Ponderosa Pine is 130 miles long and follows ID 21, a two-lane paved road suitable for all vehicles. The highway is narrow with some steep grades but has passing lanes. Avalanche conditions exist during winter in the Banner Summit Area; road closure can be frequent.
The Ponderosa Pine scenic byway winds through the Boise National Forest with a small portion through the Challis National Forest and Sawtooth National Recreation Area. The byway passes through dense forests of pine, across high mountain valleys, and along portions of the Boise River, Lucky Peak Lake, and the South Fork of the Payette River. Visitors to the byway are treated to spectacular views of the rugged Sawtooth Mountains.
Much of the Sawtooth Mountains are protected from development by the 217,000-acre Sawtooth Wilderness. This wilderness area provides excellent opportunities for hiking, backpacking, and horseback riding.
Boise National Forest is rich with wildlife. In the higher elevations are mountain lions and black bears. Mule deer and elk may be seen grazing early in the morning or evening. Birdwatchers will want to be on the lookout for hummingbirds, larks, swallows, and many more species. Bald eagles, hawks, and falcons can also be seen flying overhead.
If you’re interested in staying awhile, the national forest offers several camping areas directly along the byway. You can venture into the forest from the many side roads to find more camping and picnicking opportunities.