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What Coordinate system is this??!

Question asked by WhitneyNewcomb on Jun 21, 2018
Latest reply on Jun 22, 2018 by WhitneyNewcomb

Hello all!

I have some old data from 1953-1964 with a coordinate system I just cannot figure out.

This coordinate, 681779N , 2145751E should be located in the Oroville California area.

I have ruled out NAD27 and some variations of NAD27.

If anyone has ANY ideas, I would be very grateful.


Please also suggest places to submit this question.