TerraTracer · free & open source

Draw a property boundary from its written description.

Deeds and mining-claim certificates describe land in metes and bounds — “beginning at an iron pin, thence South 0°30′ West 660 feet…”. Paste that description below and get a survey plat, the corner coordinates you can walk to, and a Google Earth file — with every calculation checked and every assumption declared.

Everything runs in your browser. Nothing you type is uploaded, stored, or seen by anyone.

How it works

1 · Transcribe

Copy the bearings and distances from your document into the form below — or start from an example and swap in your own calls.

2 · Verify

The engine walks the description on the real curved Earth and runs five layers of checks: closure, acreage, statute, and more. A problem is reported, never hidden.

3 · Walk it

Download the plat, open the corners in Google Maps, or load the KML in Google Earth and stand on your boundary.

Your description edit freely — the format is plain text with comments

Loading the survey engine (about 10 MB, cached after the first visit)…
Could not read the description

Result