There are no ages for Magnesiochromite at North End Claim (North End Mine), Ziehlke Claims Group [1948] (Last Chance Claim; Morning Glory Claim; Murphy Lease; Pereira Property; C. M. Quigg Lease On Pereira Property [1918]; C And M Quigg Lease), Peoria Flat, Yosemite Junction, Tuolumne Co., California, USA