Assistant Research Professor in the Archaeometry Laboratory at MURR. Dr. MacDonald is a specialist in archaeological science, with interests in multi-method analytical approaches to pigments, rock art, ceramics, obsidian, and glass. She presently studies rock art and mineral pigment use in the Pacific Northwest and in the lower Canadian Shield, as well as obsidian resource use in Northwestern Patagonia. Dr. MacDonald also coordinates the MURR Archaeometry Laboratory Pre-Doctoral Internship Program.