Browse Topics
- IS NGVD29 THE SAME AS MEAN SEA LEVEL?
- WHY DID WE SWITCH FROM NGVD29 TO NAVD88?
- WHY DID THE ELEVATIONS CHANGE WHEN WE SWITCHED TO NAVD88?
- DID WE SINK THAT MUCH?
- WHAT IS THE CONVERSION FROM NGVD29 TO NAVD88?
- Can’t I use CorpsCon to convert survey data from NGVD29 to NAVD88?
- WHAT IS A DATUM AND AN EPOCH?
- OK, AGAIN, WHAT IS AN EPOCH?
- WHY DOESN’T MY BENCHMARK SHOW UP ON THE NGS WEBSITE?
- WHAT DOES THIS 2004.65 EPOCH MEAN?
- WHY IS THE ELEVATION ROUNDED TO THE 0.1 FOOT ON THE NGS DATASHEET?
- IS GPS MORE ACCURATE THAN LEVELS?
- WHAT IS MLLW AND HOW DO I USE IT?
- WHO ELSE HAS SUBSIDENCE PROBLEMS (TEXAS?) AND WHAT ARE THEY DOING ABOUT IT?