Ages for Pyrite at Proto Mine (Proto Group; Proto Brothers Claim), Gladstone Mine Group (Gladstone Prospect; Gladstone-Proto Group; Proto Mine Group), Providencia Canyon, Patagonia District, Patagonia Mts, Santa Cruz Co., Arizona, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 65Ma - 65Ma at this locality