Carquinez Strait Maps

The purpose of this project was two-fold. One goal was to generate a series of paper maps that are usable for the purpose of documenting parks, trails, and points of interest in the general area of the Carquinez Strait. By "useable," it is meant that the maps should be able to be printed on standard 8.5" x 11" paper while remaining clear and legible.

(More below the fold.)

Location of Carquinez Strait

Another goal was to provide a dataset for the purpose of exploration in the ESRI environment. There are multiple layers in the project that are enabled or disabled from view depending on the scale being displayed. Additionally, most features have information available through the "map tips" feature. There are bookmarks that suggest scales and visible extent, but any scale and areal extent provides information.

There are also three basemap layers that lend themselves to change detection: a DRG is dated from 1948-1980, four DOQQ tiles are dated from 1997, and eight NAIP tiles are dated from 2009.

Two hundred forty-four waypoints were captured with a GPS receiver for the purpose of mapping park boundaries, trails, and points of interest. Major roads were heads-up digitized from 2009 NAIP orthophotographs; major water features were heads-up digitized from USGS 7.5-minute quadrangle DRGs.

All data for the project, raster and vector in addition to the GPS waypoints and annotation, are stored in a spatially referenced file-based geodatabase.