How to Convert PLSS Descriptions to GPS Coordinates

You have a legal land description — something like "NE 14-5N-3W 6th PM" — and you need to know where it is on a map. This guide walks through the process of converting a Public Land Survey System description into GPS coordinates (latitude and longitude) that you can use in a mapping application, a field GPS unit, or a GIS platform.

What You Need Before You Start

To convert a PLSS description accurately, you need three pieces of information:

1. The legal land description itself. This includes the aliquot part (quarter section), section number, township and range, and the governing principal meridian.
2. The correct principal meridian. If the description does not specify the meridian, you need to determine it from the state or county. Some states use a single meridian (Kansas uses only the Sixth Principal Meridian; Oklahoma uses only the Indian Meridian), while others are divided across multiple meridians.
3. A conversion tool. You can look up PLSS coordinates on the BLM's GeoCommunicator website, use GIS software with PLSS layers, or use Township America for a faster, simpler conversion.

Step 1: Parse the Legal Land Description

Before you convert anything, make sure you understand what the description is telling you. Here is a breakdown of a typical PLSS description:

NE 14-5N-3W 6th PM

Reading right to left, the description narrows from a broad geographic area (the meridian and its grid) down to a specific 160-acre parcel. The meridian tells you which grid. Township and range tell you which 6-by-6-mile block. The section number identifies a specific square mile within that block. The quarter section pinpoints a 160-acre portion of that square mile.

Some descriptions go further:

NWNE 14-5N-3W 6th PM

This adds a quarter-quarter section — the Northwest Quarter of the Northeast Quarter — narrowing the location to a 40-acre tract.

Step 2: Verify the Principal Meridian

This step catches more errors than any other. If a description reads "NW 15-8N-4W" without a meridian reference, you need to figure out which meridian governs the area. A description with the same township, range, and section can exist under multiple meridians in different states.

Quick rules of thumb:

• Kansas, Nebraska — always Sixth Principal Meridian
• Oklahoma — always Indian Meridian (except the Panhandle, which uses the Cimarron Meridian)
• Oregon, Washington — always Willamette Meridian
• States with multiple meridians (Colorado, California, Montana) — check the county or use a meridian map

If you are unsure, Township America will show you available meridians for the state you select.

Step 3: Enter the Description in Township America

Open the PLSS converter and enter your legal land description. You can type it in several common formats:

• NE 14-5N-3W 6th PM
• NE 1/4 Sec 14 T5N R3W 6th Principal Meridian
• T5N R3W Sec 14 NE

The converter parses common PLSS notation and identifies the components automatically. Select the state if prompted, and the tool will match the correct principal meridian.

Step 4: Read the Results

After conversion, you get:

• Latitude and longitude — The GPS coordinates for the center of the described parcel. For a quarter section (160 acres), this is the center of that quarter. For a quarter-quarter (40 acres), it is the center of the 40-acre tract.
• A map pin — The location displayed on an interactive map so you can visually confirm it matches your expectations.
• Parcel boundaries — The approximate outline of the described area, shown as a polygon on the map.

Always do a quick visual check. If the pin lands in a different state or in the wrong part of the state, you likely have a meridian or directional error (e.g., North vs. South, East vs. West).

Step 5: Export or Use the Coordinates

Once you have confirmed the coordinates are correct, you can:

• Copy the lat/lng values and paste them into Google Maps, Google Earth, or any mapping application.
• Download a KML or GeoJSON file to import into GIS software like QGIS or ArcGIS.
• Use the coordinates in a report — drilling permits, title opinions, crop insurance filings, appraisals, and other documents that need GPS locations alongside the legal description.

Common Errors and How to Avoid Them

Wrong Meridian

The single most common conversion error. "T5N R3W" exists under multiple principal meridians in different states. Always verify the meridian before converting.

Transposed Township and Range

Accidentally swapping the township and range values (writing "T3W R5N" instead of "T5N R3W") sends you to a completely different location. Read the original document carefully.

North vs. South, East vs. West

Dropping or flipping the directional suffix changes the result dramatically. T5N and T5S are on opposite sides of the baseline — potentially hundreds of miles apart.

Missing Quarter Section

If you enter only "Section 14, T5N R3W" without a quarter section, the converter returns the center of the entire section (640 acres). This may be sufficient for some purposes, but if you need a specific quarter, include it.

Non-Standard Descriptions

Some legal descriptions use metes and bounds instead of PLSS notation, or include supplementary language like "Lots 1 and 2" alongside quarter-section references. Government lots along water boundaries replace standard quarter sections. If your description includes lot numbers, you may need to reference the original survey plat for exact boundaries.

Working with Multiple Descriptions

If you have more than a handful of descriptions to convert, entering them one at a time is slow. Township America's batch converter lets you upload a CSV or paste multiple descriptions at once and get coordinates back for all of them. This is particularly useful for:

• Landmen processing drilling permits across a play
• Title companies verifying rural property locations
• GIS analysts building parcel databases
• Agricultural operations mapping field boundaries for USDA programs

Accuracy and Limitations

PLSS conversions return the calculated center point of the described parcel based on official BLM survey data. These coordinates are accurate for locating the general area — finding a well pad, identifying a property on a map, or verifying a filing. They are not a substitute for a licensed land survey. Actual parcel boundaries may differ from the theoretical grid due to original survey errors, natural feature adjustments, or subsequent resurveys.

If you need precise legal boundaries for construction, fencing, or boundary disputes, hire a licensed surveyor. For everything else — locating parcels, verifying descriptions, mapping assets, and filing permits — converting PLSS to GPS coordinates gets you where you need to be.