Blog · September 28, 2026
A County Map Before You Buy the GPS
The viewer is free. The GPS is for the field.
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Why this comes up
The viewer is free. The GPS is for the field. Learn the parcel online first so the waypoints you save mean something.
What to check on the map first
County GIS lines are assessment maps. They are not a survey, and a product will not redraw them.
Open Platbookmapper and choose the state. The directory sends you to the county viewer. Match the parcel ID before you trust a pin on an aerial photo.
A tool that matches the job
Shop the Garmin handheld GPS when that is the job in front of you. Learn the parcel online first so the waypoints you save mean something.
The limit
A handheld GPS gets you back to the truck. It is often several meters off, so it cannot tell you where the legal line is.
If the line is the real question, call a surveyor. The gear will not answer it.
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey.