Tex. Parks and Wildlife Code § 22.083

(a) The department shall care for the grounds of the Mission of San Rosario as a suitable and appropriate memorial and shall enclose the mission grounds with an appropriate and substantial park fence.

(b) The original boundaries of the mission consist of the surface title of 4.77 acres of land in the County of Goliad, Texas, said 4.77 acres of land, more or less, being the following described parcel of land:

BEGINNING at a concrete monument in the Southeast Right-of-Way line of State Highway No. 12, same being a R/W marker for said Highway, and being 50 ft. at right angles from the center line of said Highway, and marked Sta. 914/00;

THENCE South 39 deg. 36 min. West, with right-of-way fence, 295.9 ft. to a concrete monument for corner of this present survey;

THENCE South 56 deg. 02 min. East, at 148.0 ft. an iron pipe, at 350.0 ft. a concrete monument for corner of this present survey;

THENCE South 32 deg. 08 min. East, at 69.9 ft. an iron pipe, at 193.3 ft. a tack in cedar post at 241.4 ft. a concrete monument for corner of this present survey;

THENCE North 83 deg. 35 min. East, 193.4 ft. to a concrete monument for corner of this present survey;

THENCE North 17 deg. 46 min. East, at 109.7 ft. an iron pipe, at 227.3 ft. a concrete monument for corner of this present survey;

THENCE North 43 deg. 17 min. West, at 116.8 ft. an iron pipe, at 240.5 ft. a concrete monument for corner of this present survey;

THENCE North 57 deg. 21 min. West, at 193.3 ft. an iron pipe, at 356.3 ft. a concrete monument for corner of this present survey; same being a highway R/W marker for said Highway for extra width in R/W and also marked Sta. 914/00;

THENCE North 49 deg. 55 min. West, with Highway R/W line, 34.9 ft. to the place of beginning;

Containing Four and 77/100 (4.77) acres of land and all being out of Maria de Jesus de Leon Survey, Abstract 21, Goliad County, Texas.

Said 4.77 acres of land, more or less, being the land conveyed to the County of Goliad by William J. O'Connor on July 15, 1935, as shown by deed of such date duly recorded in Volume 77, Page 565, of the Deed Records of Goliad County, Texas, on July 17, 1935, and to which reference is here made for all pertinent purposes.