<p>Ranch to Market Road 187 (RM 187) is a 81.9-mile (131.8 km) Ranch to Market Road located in Zavala, Uvalde, Bandera, and Kerr counties in the US state of Texas. The route passes through the cities of Sabinal, Utopia, and Vanderpool. The road helps connect several small south Texas ranches to major highways. RM 187 was first designated in 1945, and was extended three times during the 1940s. As of 2012, it is the longest Ranch to Market Road in the state of Texas.
RM 187 begins at its southern terminus with US Highway 57 (US 57), near Batesville, as a paved, two-lane, asphalt road. RM 187 winds through several miles of Southern Texas grassland dotted with trees. The highway passes several large ranches and farms along this course and intersects with several county routes and private roads. For this stretch of the route, RM 187 is heading in a northeast direction. The highway turns north about two miles (3.2 km) south of an intersection with FM 140. The two highways run concurrently for nearly a mile (1.6 km) before FM 140 turns westward. RM 187 continues north through rolling grasslands for almost 3.5 miles (5.6 km) before turning in a northeast direction. The route continues in this</p>