Where can I find the local ties, if any, to the horizontal control monuments?
When the original 2050 GPS horizontal control network was done in 1990, Monument Records were prepared on all of the stations. These records can be found at the Survey front counter located at 300 North Flower Street, Santa Ana. These records contain a simple sketch with the local curb ties and their measured distances. Monuments can be reset from these ties as long as the tie distances agree within an acceptable tolerance. Additionally, Record of Surveys were recorded for all GPS points.
