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McMurdo Dry Valleys Depth to Refusal Data DOI: https://doi.org/10.15784/602078 Cite as Levy, J., & Pfaff, E. (2026) "McMurdo Dry Valleys Depth to Refusal" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/602078. Abstract This dataset contains depth to refusal (DTR) measurements from the McMurdo Dry Valleys, collected via T-bar probing and soil excavations between 2006 and 2025. DTR measurements were made opportunistically over several projects, and were collected from Taylor, Wright, Garwood, and Beacon Valleys. Creator(s): Levy, Joseph; Pfaff, Emily Date Created: 2026-07-28 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: 160.42303, East: 164.163, South: -78.0321, North: -77.402 Award(s) NSF 1847067 Version: 1 Related Project(s) Linking Antarctic Cold Desert Groundwater to Thermokarst & Chemical Weathering in Partnership with the Geoscience UAV Academy Keywords active layer Active Layer Thickness Antarctica Cryosphere Dry Valleys Permafrost Soil