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U.S. DEPARTMENT OF THE INTERIOR

BUREAU OF LAND MANAGEMENT

Oregon / Washington

BLM Road Numbers - Understanding Township and Range

BLM roads are identified numerically by a legal description based upon a rectangular grid, established from a point in northwest Portland, and spanning the State. From this point, Township grid lines run east and west; Range grid lines run north and south -each six miles apart. The resulting 6-mile squares called Townships are divided into 36 one-mile squares called Sections. Each section is approximately 640 acres.

BLM road signs in the field have three numbers. They identify the Township, Range, and Section from which a road originates. For example:

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Numbers after the decimal point indicate another road originating in Section 14.

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