2772 Farm to Market Road 2772 (FM 2772) is located in Wilson County. FM 2773 Farm to Market Road 2773 (FM 2773) is located in Karnes County. FM 2774 Farm to Market Road 2774 (FM 2774) is located in Burleson County. RM 2775 Ranch to Market Road 2775 (RM 2775) is located in El Paso County. The highway is known locally as Hueco Tanks Road. RM 2235 begins in western Butterfield northeast of El Paso at Montana Avenue which carries US 62 and US 180 in northeastern El Paso County. The route encounters gentle grades running through a valley in the western Hueco Mountains east of Fort Bliss, past the Hueco Tanks rock formation to Hueco Tanks State Historic Site, a state park maintained by the Texas Parks and Wildlife Department. The road becomes PR 68 upon entering the park. Along its length, the road intersects only local streets and private roads. RM 2775 was designated on June 2, 1967, along the current route. On February 21, 1974, the continuation of the road within the state park, previously without designation, was named Park Road 68. FM 2775 (1962) The original FM 2775 was designated on May 2, 1962, running from FM 628 (now RM 628) west of Loyola Beach to a point approximately to the northwest. The highway was cancelled on May 18, 1966, with the mileage being transferred to FM 772. FM 2776 Farm to Market Road 2776 (FM 2776) is located in Brazos County. It runs from FM 974, northeast of Tabor, southeastward to SH 21 and US 190 in Wixon Valley. FM 2776 was designated in 1962 along its current route. FM 2777 Farm to Market Road 2777 (FM 2777) is located in Freestone County. FM 2778 Farm to Market Road 2778 (FM 2778) was located in Walker County. No highway currently uses the FM 2778 designation. FM 2778 was designated on May 2, 1962, from SH 150 northeastward a distance of . FM 2778 was cancelled on December 21, 1990, and became a portion of FM 2693. FM 2778 was not cancelled until the road connecting FM 2693's previous end to FM 2778 was complete. FM 2779 Farm to Market Road 2779 (FM 2779) is located in Frio County. FM 2780 Farm to Market Road 2780 (FM 2780) is located in Washington County. FM 2781 Farm to Market Road 2781 (FM 2781) is located in Houston