| GPS Correction Data |
St. Clair County GIS is providing GPS correction data for surveyor use. Information is updated daily and the most current file is located HERE as a .zip file for downloading. Archived data can be accessed using the calendar below. Dates in black are available for selection.
| | Sun | Mon | Tue | Wed | Thu | Fri | Sat |
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| 29 | 30 | 31 | 1 | 2 | 3 | 4 | | 5 | 6 | 7 | 8 | 9 | 10 | 11 | | 12 | 13 | 14 | 15 | 16 | 17 | 18 | | 19 | 20 | 21 | 22 | 23 | 24 | 25 | | 26 | 27 | 28 | 29 | 1 | 2 | 3 | | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
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