About Elizabeth Robertson Books by Elizabeth Robertson Archaeology on the Edge New Perspectives from the Northern Plains edited by Jane H. Kelley contributions by Brian Kooyman, Jack W. Brink, J.F. Dormaar, H.V. Hills, Jane Kelley, Alison Landals, Robert McGhee, Paul McNeil, Gerald A. Oetelaar, Trevor R. Peck, Scott Raymond, Elizabeth Robertson, M. Shayne Tolman, J. Rod Vickers, Dale Walde & Michael C. Wilson