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Los Angeles County CCS Zone 7

Posted: Tue Jan 02, 2018 3:10 pm
by Steve Martin
Does anyone know the background on how Los Angeles County got is own zone in the original California Coordinate System legislation?

How did CCS27 Zone 7 get an origin of Northing (y) = 4,160,926.74 feet and Easting (x) = 4,186,692.58 feet?

Re: Los Angeles County CCS Zone 7

Posted: Tue Jan 02, 2018 3:30 pm
by Proud7191
https://www.californiasurveyors.org/cal ... SURV87.pdf

Mr. Ira Alexander provides some background on page 9.

Jp

Re: Los Angeles County CCS Zone 7

Posted: Tue Jan 02, 2018 4:17 pm
by Steve Martin
Thanks JP

I suggested to CLSA that they scan the historic Cal Surveyor magazines for the 40th anniversary. Chrissy Willson did a fantastic job making them searchable. What a huge asset to have that body of knowledge at our fingertips.

Does anyone have a copy of Los Angeles County Surveyor - Specification for Cadastral Mapping. 1941?

Re: Los Angeles County CCS Zone 7

Posted: Wed Jan 03, 2018 8:45 pm
by Proud7191
That was a great suggestion, and it is a great body of knowledge that is very useful. Thanks, Jp