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Loope , D. and Kettler , R. 2019. Rinded, Iron-Oxide Concretions in Navajo Sandstone Along the Trail to Upper Calf Creek Falls, Garfield County. Geosites. 48, 1 (Dec. 2019), 1-7. DOI:https://doi.org/10.31711/geosites.v1i1.59.