The analysis here of 23 obsidian artifacts from two sites within the China Lake Naval Weapons Station, as in many of the previous studies, indicated the presence of all the Coso Volcanic Field obsidian sources (Shackley 2014, 2015a, 2015b, 2016, 2017, 2019a, 2019b). In this case West Sugarloaf (69.6%) is dominant followed by Sugarloaf (13%) and Joshua Ridge and West Cactus Peak each at 8.7%
