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1. Index Contours, 200 scale

1999. Towill Incorporated. Elevation contours corresponding to digital orthophotographs rectified to ground control at accuracies of 200 and 400 scale covering entire Marin C... San Francisco (Calif.). Towill Incorporated.

2. Index Contours, 200 scale

1999. Towill Incorporated. Elevation contours corresponding to digital orthophotographs rectified to ground control corresponding to 200 scale mapping (1 inch = 200 feet) cov... San Francisco (Calif.). Towill Incorporated.

3. Interior contours, 200 scale

1999. Towill Incorporated. Elevation contours corresponding to digital orthophotographs rectified to ground control corresponding to 200 scale mapping (1 inch = 200 feet) cov... San Francisco (Calif.). Towill Incorporated.

4. Interior contours, 400 scale

1999. Towill Incorporated. Elevation contours corresponding to digital orthophotographs rectified to ground control corresponding to 400 scale mapping (1 inch = 400 feet) cov... San Francisco (Calif.). Towill Incorporated.

5. SCGISDB2_BASE_ADM_PUBLICLANDS

1999. County of Sonoma GIS Central. These Public Lands should NOT be represented as survey data, and the official record of survey takes precedence where there are discrepancies. It ... Santa Rosa (Calif.). County Of Sonoma Gis Central.

6. Supervisor Districts

1999. Dept. of Public Works. Supervisorial districts for the City of San Francisco. This data include Treasure Island as part of Supervisor District 6. The data was created bas... San Francisco (Calif.). Department Of Telecommunications and Information Services.