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Nobody Knows What Lies Beneath New York City

Passing this along.  Thanks Thierno Diallo (LACDPW) for forwarding to us:
https://www.bloomberg.com/news/features/2017-08-10/nobody-knows-what-lies-beneath-new-york-city

We have been doing projects here in the Los Angeles County Department of Regional Planning that remind me of some of the efforts mentioned in this article. While we are not mapping the underground, we are scanning and georeferencing maps that are 50 years old and beyond.  We have lots of different sets of maps as well, from old wall sheet maps to older zone change ordinances, certificates of exceptions, etc.  This is important information that we are able to serve via GIS web mapping applications to our staff.

ILLUSTRATION: HUDSON CHRISTIE

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