The whitewater river run from Lady Face Falls to Inlet Stanley Lake in Idaho is a popular destination for both experienced and novice paddlers. The ideal streamflow range for this run is between 500-1500 cfs, which is typically during the spring and early summer months. The class rating for this run is class III-IV, with some rapids reaching class V during high water.

The segment mileage for this run is approximately 10 miles and includes several notable rapids and obstacles such as Lady Face Falls, Pistol Creek Rapid, and Elkhorn Rapid. Lady Face Falls is a 20-foot waterfall that presents a challenging drop for paddlers. Pistol Creek Rapid is a long, technical section that requires precise maneuvering, and Elkhorn Rapid is a steep drop with a large hydraulic that can be difficult to navigate.

In terms of regulations, paddlers are required to have a permit to access the Stanley Lake area. Additionally, there are restrictions on group size and camping locations. Paddlers should also be aware of the potential for cold water and hazardous weather conditions in the area.

Overall, the Lady Face Falls to Inlet Stanley Lake run offers a thrilling whitewater experience in a scenic and remote location. However, paddlers should be experienced and prepared for the challenges of this class III-IV run and follow all regulations and safety guidelines.