Williams Peak is based closely on the L-101 design. Nonbattered, enclosed timber towers (NETTs) weren't as frequently erected by the cccs as the BETT designs. Attrition of this tower type has also been high. When Hayden Hill is removed, this will be the last L-1 in the CDF&FP detection system. The catwalk revision is shown in CDF Plan Number 155. The tower sits upon a rocky peak, a short distance above the parking area.
The Lookout was removed sometime between 2017 and 2018.