  LIBRARY       : CA
  LAYER NAME    : 24KCOASTLINE
  COVERAGE NAME : COAST24A

COVERAGE DESCRIPTION:

California shoreline from the Oregon border to the
Mexico border including Humboldt, Arcata, San Francisco, San 
Pablo, Suisun, Honker, and San Diego Bays and includes offshore
rocks. 

This shoreline represents the mean high tide line along the coast.
Accuracy of this coverage is fairly good with respects to the
original source material.

This coverage has been compiled from individually digitized 7.5'
USGS quadrangles controlled by NGS triangulation stations and individual
quad corners. RMS errors averaged under 5 meters per quad.

The shoreline between the Mare Island and Cuttings Wharf quads did not match.
The Cuttings Warf quad was completed in 1949 and the Mare Island quad was
completed in 1959. The differences were assumed to have resulted from the
the different mapping dates. Consequently, the shoreline of the quad with the
later date, the Mare Island quad, was held and the shoreline of the Cuttings
Wharf quad was manually adjusted to fit.

Not all of the quadrangles were current, since we could not afford new mylar
sets.  You will find some differences between our shoreline and the most
recent USGS quadrangles.  We intend to clarify this problem in the next
few years.

Data sources:

US Geological Survey
  (Various years) 1:24 000 topographic map series.


For additional information contact:

     California State Lands Commission
     Environmental Planning Division
     1807 13th Street
     Sacramento, California 95814-7187
     (916)574-1880 


Vital Information:

ARC/INFO Coverage type:            line, point
ARC/INFO tolerances:               5 meters
Number of features:                28346 arcs, 12077 points
Source media:                      mylar, paper
Source scale:                      1:24,000
Source projection and parameters:  Lambert
Date updated:                      9/1993


Attribute Information:

There are is only standard attribute information for the
PAT and AAT files.
  
