The question of the origin of cleared circles as cultural resource features: weary humans or energetic rodents?

McDonald, E. V., Bacon, S. N., Schumer, R., Jenkins, S., Caldwell, T. G. (2011). The question of the origin of cleared circles as cultural resource features: weary humans or energetic rodents?, 80, 9th International Conference on Military Geosciences, Abstracts with Programs: Las Vegas, NV, June 19, 2011-June 24, 2011