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Southern Pacific Railroad Survey

Southern Pacific's Trans-Pecos survey spans the largest counties in Texas. S.P. blocks are referenced in ranch deeds and federal-leasing parcels across far West Texas.

Abbreviation

S.P.

Established

1865

Primary Counties

Pecos, Brewster, Presidio + 2 more

Convert a S.P. description

Township America accepts Block & Section references against S.P. transparently. Try one:

Block 5 Sec 14 S.P. Survey, Pecos County, TX

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S.P. coverage by county

Counties where S.P. Block & Section references are commonly cited. Each links to a county-scoped converter.

Pecos County Brewster County Presidio County Hudspeth County Culberson County

Other Major Texas Surveys

T&P

Texas and Pacific Railway

H&TC

Houston and Texas Central Railway

GC&SF

Gulf, Colorado and Santa Fe Railway

HE&WT

Houston East and West Texas Railway

I&GN

International and Great Northern Railroad

T&NO

Texas and New Orleans Railroad

GH&H

Galveston, Houston and Henderson Railroad

BSL&W

Beaumont, Sour Lake and Western Railway

MK&T

Missouri, Kansas and Texas Railway

See all 254 Texas counties

Browse every county that's part of the Texas Survey System.

Texas county index