I purchased 10 acres and have the GPS coordinates of the corners. How can I locate the corners exactly without a surveyor? If I purchase a GPS unit from a sporting goods store will it help me? What is recommended? Thanks.
Answer by ►BobB◄
you might get within 30 feet.
You need the surveyor. A civilian GPS is good to within 10 meters without a differential GPS.
Answer by percival.sweetwater
GPS accuracy can be as much as 100 feet off. If you want exact specifications, you need a surveyor. No other way.
Answer by wires
A regular GPS simply isn't that accurate. Your title should have a description of your property. If you can find the approximate corners from this description you can look and see if you can find any corner stakes. Check for any kind of metal rod pounded into the earth. Borrow a metal detector or something. Don't dig up the rods, just locate them. If you find them, they should be your property corners.
Answer by ca_surveyor
Ok.. there are a LOT of variables... here are some basics as a guideline only...
1) If your property has dense tree coverage, forget it. GPS does not provide repeatable accuracy under tree cover.
2) Depending upon your unit and the area and the available satellite coverage at the time, your hand held accuracy with a typical $ 200 store bought upper end unit will be 3 to 10 feet (one meter +/- ) if you have WAAS correctional ability, or to 10 to 30 feet (the $ 100 model).
3) You can improve your accuracy if your unit has the ability to take a lot of readings and average them but this does not mean you have an accurate value. (accuracy is a measure of how close you are to the correct value).
4) How did you come up with the coordinate values for your property? There are many coordinate grid systems (NAD83, NAD27, etc.. if you calculated the values based off of your deed dimensions did you remember that GRID distances are not the same as GROUND values?
These are a few items to consider. They are not insurmountable problems but if you screw them up you will generally move further and further from the correct position..
Next.. it is important to realize that some dimensions on deeds simply do not count. For example the deed course... 300 feet to the corner of the brick wall does not guarantee that the length of the line is 300 feet. The law says that the limit of the boundary is the brick wall.. regardless of it being 300 feet or only 100. Does your deed have "CALLS" like that.
Calls may not only be to physical things but can also be to other property lines. '300 feet to the Smith Property' means that you will need to survey the Smith Property before you can establish yours.(or at least that particular line of the Smith property) because Mr. Smith owns senior rights.
Are you sure you do not need a surveyor?
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Give your answer to this question below!
Orignal From: How can I locate a property line with GPS numbers?
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