* This research was funded by the National Science Foundation Arizona Accelerator Mass Spectrometry (ams) Facility, the U.S. Department of the Army, Pueblo Chemical Depot, the Colorado Archaeological Society Alice B. Hamilton Scholarship Fund, the American Water Resources, Rich Herbert Memorial Scholarship, and a Professional Research Opportunities for Faculty (profs) grant to Donald Sullivan from the University of Denver. This research would not have been possible without the help of many people. Those deserving special thanks include Max Canestorp of the U.S. Fish and Wildlife Service for his continuing support of paleoenvironmental research at the Pueblo Chemical Depot and for reviewing this article, Duke Phillips and his staff at the Chico Basin Ranch for allowing us access to the fens at the ranch, and John B. Gilmore for providing laboratory and financial assistance. Mark Chenault and his family deserve our appreciation for providing room and board to Kevin Gilmore while he was processing samples at the Arizona ams Facility. Several people provided comments that greatly improved the ideas and presentation of this field note. We would like to thank Kay Wall at ero Resources for technical editing and Craig E. Colten at the Geographical Review, Max Canestorp, and two anonymous reviewers for their constructive comments on our manuscript. As always, we take full responsibility for any errors and omissions.
Notes
* This research was funded by the National Science Foundation Arizona Accelerator Mass Spectrometry (ams) Facility, the U.S. Department of the Army, Pueblo Chemical Depot, the Colorado Archaeological Society Alice B. Hamilton Scholarship Fund, the American Water Resources, Rich Herbert Memorial Scholarship, and a Professional Research Opportunities for Faculty (profs) grant to Donald Sullivan from the University of Denver. This research would not have been possible without the help of many people. Those deserving special thanks include Max Canestorp of the U.S. Fish and Wildlife Service for his continuing support of paleoenvironmental research at the Pueblo Chemical Depot and for reviewing this article, Duke Phillips and his staff at the Chico Basin Ranch for allowing us access to the fens at the ranch, and John B. Gilmore for providing laboratory and financial assistance. Mark Chenault and his family deserve our appreciation for providing room and board to Kevin Gilmore while he was processing samples at the Arizona ams Facility. Several people provided comments that greatly improved the ideas and presentation of this field note. We would like to thank Kay Wall at ero Resources for technical editing and Craig E. Colten at the Geographical Review, Max Canestorp, and two anonymous reviewers for their constructive comments on our manuscript. As always, we take full responsibility for any errors and omissions.