Dwight Billeadeau discusses the properties of obsidian rock, a volcanic glass, during his demonstration on native ancestral tools on Tuesday at First People Day at Glacier High School. Billeadeau, 62, told the students he has been making arrowheads since he was 10 years old. First People Day featured presentations, song, dance, storytelling and native games led by American Indian educators and elders.

November 28, 2009