Texas Civil Practice and Remedies Code - CIV PRAC & REM § 16.026. Adverse Possession: 10-Year Limitations Period

(a) A person must bring suit not later than 10 years after the day the cause of action accrues to recover real property held in peaceable and adverse possession by another who cultivates, uses, or enjoys the property.

(b) Without a title instrument, peaceable and adverse possession is limited in this section to 160 acres, including improvements, unless the number of acres actually enclosed exceeds 160. If the number of enclosed acres exceeds 160 acres, peaceable and adverse possession extends to the real property actually enclosed.

(c) Peaceable possession of real property held under a duly registered deed or other memorandum of title that fixes the boundaries of the possessor's claim extends to the boundaries specified in the instrument.