SOURCES FOR SURVEY MONUMENT DATA

• OPUS: Online Positioning User Service
• CORS: Continuously Operating Reference Stations
• National Readjustment: NAD83(NSRS2007) Coordinates Available
• NGS Data Sheets
• NGS Mark Recovery Report
• NGS Coordinate Conversion and Transformation Tool

• NC Geodetic Survey Station Search (Monument Descriptions).

• IGS Rapid Orbit
  (17 hour latency, SP3 files).