Planar-wedge cross-bedded calcarenite bioclastic facies of unit Tbcb (Tertiary Bouse carbonate and resistant marl unit) in Hart Mine Wash area. The geologic map are report, Report to accompany the Geologic Map of the Cibola Area, La Paz County, Arizona, and Imperial County, California', are available for download
https://library.azgs.arizona.edu/item/ADGM-1552428343570-176
Photographer: Brian Gootee