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Cover:High-resolution elevation data from the Bigstick Sand Hills in southwestern Saskatchewan, Canada, showing parabolic sand dunes with back ridges and residual dune ridges. In association with optical ages, these morphological features document a recent transformation of barchan dunes to parabolic dunes in the northern Great Plains. See "Barchan dunes stabilized under recent climate warming on the northern Great Plains," by Wolfe and Hugenholtz, p. 1039-1042.
Photo by: Christopher Hugenholtz
Cover Design by: Heather L. Sutphin
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