# Removing Bad Data Points
**Symptoms:**
- Imported field elevation data is all one color.
- Field is also not centered on the import screen.
**Cause:**
There are many ways in which a system can collect bad data points. This could be due to the tractor being parked at the shed with the linkage down. When the tractor is started and the recording source is set to the linkage. The system will record a couple of points at the location. You will not know that at the time but when you bring that data into T3RRA Design Plus you will see the field to be all one color.
**Solution:**
1. Import elevation data for the John Deere display into T3RRA Design Plus and edit the bad points.
2. If you are using the John Deere Operation Center and have documented a task you could also use our on-line tool T3RRA 3D.
Import your data from your display into T3RRA Design Plus, select OK.
Raw point data surface and import window will open.
If you look hard enough you will see bad data points.
You can use the “Points selection Tools” to select the unwanted points.
Once you have, select the bad points with your mouse. Then use the “Trash” icon to remove the points.
Once the bad points have been removed your map should look like the screenshot below.
