Na Cha-Ang (นาชะอัง) belongs to Mueang Chumphon District. The national archaeological database locates Khao Sam Kaeo in village 1, describing low hills interspersed with plains near the Tha Taphao watercourse. Archaeological research identifies an early trading community with evidence of glass, stone and metal working. The cultural-environment inventory confirms this locality within Na Cha-Ang. The wider tambon is distinct from the archaeological site and from a managed visitor attraction.
Do not assume the archaeological land has a staffed visitor entrance; the database identifies it as a research locality. Seek current local access information before a heritage visit. The administrative reference point is separate from the site, village meeting point or any institution entrance.
