Barcode	10015872
Title	Plat of Instructions for Base and Sounding Lines in Alameda and Contra Costa Counties
Map index name/number	LRB-2046
Geographic area	Contra Costa Base, San Pablo Base, Angel, Alcatraz, Red Rock
Location	Alameda , Contra Costa
Subject	California--Maps; Alameda County (Calif.)--Maps; Contra Costa County (Calif.)--Maps
Map type	Plat
Map size	17x22 in.
Approximate location	x -122.396847330201, y 37.8457259058877
Scale	1 in. = 50000 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.