The Public Land Survey System of the United States
The Public Land Survey System (PLSS) is the surveying method developed and used in the United States to plat, or divide, real property for sale and settling. Also known as the Rectangular Survey System, it was created by the Land Ordinance of 1785. Learn more
See a PLSS Map of the US
Principal Meridians & Base Lines
Meridians are imaginary lines of longitude on the earth that extend from the North to South Pole. A Principal Meridian is one which is used as a reference line to survey a large area. Base Lines are parallels of latitude used as the north-south reference of such surveys. Learn more
Useful Land Measurements and Conversions
Common Conversions and Equivalents. Learn more