EAGLE CREEK (Wilson County). Eagle Creek rises four miles northeast of Saspamco in western Wilson County (at 29°16' N, 98°14' W) and runs southwest for four miles to its mouth on Calaveras Creek, just north of Saspamco (at 29°14' N, 98°15' W). It crosses flat to rolling terrain surfaced by clay and sandy loams that support water-tolerant hardwoods and grasses.