Barcode	10020366
Title	Plat of The Survey of a Portion of the W 1/2 Section 18, T. 2N, R 2E., M.D.B. and M. Contra Costa County, Calif.
Map date	1931-12-29
Map index name/number	CXB-1259
Geographic area	Antioch
Location	Contra Costa
Subject	California--Maps; Contra Costa County (Calif.)--Maps
Map type	Plat Survey
Map size	30x42 in.
Approximate location	x -121.814318895711, y 38.0183161507957
Scale	1 in. = 80 ft.
Digital format	JPG2000
Technical information	Scanner - Contex SD3600 series and Contex HD5450 Plus Large Format A2 series. Software - Nextimage and Adobe Photoshop CS4. Maps smaller than/or equal 14 inches on the long side scanned at 1200 dpi; maps 15-39 inches scanned at 600 dpi; 40 inches or larger scanned at 400 dpi. Bit depth 8; TIFF.
Owning institution	California State Lands Commission
Funding source	The digitization of maps that are part of this collection was funded through a grant awarded to California State University, Fresno by the National Historical Publications and Records Commission.
Rights	© 2018 California State Lands Commission - Permission is granted to any individual to copy and use this material as long as this copyright statement is included, no editing or alteration is made to the material, and the copies are not sold, licensed, or otherwise used for commercial gain.