Grierson Spring is a historic spring located in Texas between the Concho and Pecos Rivers.[1] It formed the head of a watershed from Llano Estacado. It was named after Benjamin Grierson, whose troops helped build an outpost on it and a road through it in 1878. This allowed for him to have control over the water supply in an attempt to control the region.[2]
31°07′31″N 101°39′43″W / 31.12528°N 101.66194°W / 31.12528; -101.66194