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HomeMy WebLinkAboutGPS 1991 (71)GPS 1991 SPENCER B. CROSS, INC. GROUND CONTROL BY EAGLE GPS SURVEY CORPORATION JEFFERSON COUNTY WASHINGTON SEC 28 Vertical datum is Mean Sea Level. NGVD 1929 Horizontal datum is based on Lambert Projection. State of Washington, North Zone, NAD 1983 (- 86) AERIAL PHOTOGRAPHY DATED 4-11-91 T 30 N R 1 E WM SHEET NO. 0212800