Description: Points depicting the official border between Texas and Louisiana.
Copyright Text: Data compiled by TPWD GIS Lab,
Sabine Lake Boundary Line: data was obtained from US Supreme Court ruling in Texas Vs. Louisiana, October 1969 and provided by the Texas GLO.
Boundary line 9 nautical miles into Gulf of Mexico: data was obtained from 1976 US Supreme Court Ruling: "That the offshore lateral boundary between the States of Texas and Louisiana seaward from the point Latitude 29038'37.329" North, Longitude 93 49'30.940" West (end of jetties) is a line running South-Southeasterly from said point on a constant bearing of South 13 ΒΈ44'45.8" east true to the seaward limit of Louisiana's Submerged Lands Act grant. Texas' historic boundary then continues offshore on the same bearing to the point Latitude 29 32'06.784" North, Longitude 93 47'41.699" West."