Ages for Gold at Durzano Gulch (Duzrano Gulch), Las Guijas Gold Placers (Arivaca Placers), Las Guijas Wash, Las Guijas Mts, Arivaca District (Las Guijas District), Las Guijas & San Luis Mts, Pima Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 70Ma - 67.2Ma at this locality