 From there it passed through Nugent’s Pass to the Lower Crossing of the San Pedro River below Tres Alamos and on the waterhole on Cooke's Wagon Road that had turned west to Tucson.Following the 1855 Railroad Survey expedition the spring was for a time called Nugent's Springs after John Nugent who gave his notes of the first journey across the Tucson Cutoff to aid the expedition.By 1878 Croton Springs was 82 miles southeast of Fort Grant, 16 miles northeast of the Tucson-Fort Bowie-Dragoon Springs road crossing, (Fort Bowie was 37 miles east of this crossing, Tucson 65 miles west, Dragoon Springs 3 miles west southwest) and 71 miles southwest from Camp Goodwin.