Marking Property Lines
January 10, 2016 Leave a comment
“I have 25 acres of land and have found all the surveying stakes identifying my property. A number of the stakes are in the bush or a huge ravine so I can’t tell where the property lines are between the stakes. I would like to use the iGPSGIS ll to first record where the stakes are positioned, and then using GPS while walking in the bush / ravine to identify exactly where the property lines are and install fence posts.”
Yes, you can use iGPSGIS II (or iCMTGIS II for iPad) to record the positions of the stakes then create an Area Feature by joining the stake points. Yes, you can use iGPSGIS II (or iCMTGIS II for iPad) to record the positions of the stakes then create an Area Feature by joining the stake points. Or, if you are able to walk to each stake sequentially along the boundary, then you could log an Area Feature in the “Static” mode.
You can improve the accuracy of the recorded position by occupying the location at each stake for maybe 10-15 minutes to obtain an average position. Beware that inherently the GPS in the iPhone is not that accurate. Some users get a mapping-grade Dual XGPS-150, a Bad Elf GPS or Garmin GLO to get 1m – 3m accuracy. For sub-meter accuracy, you could check out the more expensive iSXBlue and EOS Arrow GPS receivers. The iGPSGIS II app can get the positions that these external Bluetooth GPS receivers send to the iOS device.
After you have the area boundary displayed in the app, you can eyeball your position on the map and try to stay on the boundary. Again, the GPS accuracy plays a role here.
Some users use our Stakeout iCMT app to help them get to a point or stay on a boundary line. Stakeout iCMT will report your position (distance, direction) with respect to a target point. It can also be set up to keep beeping as long as you stay on a boundary line.