Off-white chalcedony point south of Sulphur Works area; one and one half inches.
Black obsidian one and one quarter inches long and a full one half inch thick.
Three inch point of coarse gray lava from Mill Creek Canyon.
Black obsidian. South of Sulphur Works, one and one half inches.
Yana arrow points one and one half to two inches long. The materials used are mostly black obsidian, also dark grey and buff obsidian. One is of dense black basalt.