Barcode	10020536
Title	Revised May, 1955 Survey of The Ordinary High Water Mark Along Piper Slough Vicinity of Bethel Tract Contra Costa County, California
Map date	1952-03-01
Map index name/number	CB-631A
Geographic area	Piper Slough, Franks Tract State Park, Bethel Tract
Location	Contra Costa
Subject	California--Maps; Contra Costa County (Calif.)--Maps
Map type	Survey Map
Map size	30x42 in.
Approximate location	-121.636401086719,38.0443915191787
Scale	1 in. = 200 ft.
Digital format	JPG2000
Technical information	Scanner - Contex SD3600 series and Contex HD5450 Plus Large Format A2 sieres. Software - Nextimage and Adobe Photoshop CS4. Maps sma er 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.