EAST AMARILLO CREEK. East Amarillo Creek, also known as Hedrio Creek, rises north of the Amarillo city limits in Potter County (at 35°13' N, 101°50' W) and runs north-northwest for about fifteen miles to its mouth on the Canadian River, a half mile from West Amarillo Creek, west of U.S. Highway 87 and almost directly north of Amarillo (at 35°27' N, 101°52' W). For most of the stream's length the flatterrain is surfaced by leveled sand dunes, with some low-rolling to flat, locally dissected areas surfaced by clay loam and sandy loam; at the stream's mouth the soil is loose sand. Vegetation along the creekbed includes scrub brush and grasses. The creek, once a favorite haunt of Indians and hide hunters, was later part of the LX Ranch range.