MANSO Click for PIRO or SOUTHERN TIWA   Manso Territory: Along the Rio Grande River in southern New Mexico. Manso Divisions: Manso and Gorretas.   Portals .   Piro-Manso-Tiwa Tribe of Guadalupe Pueblo Las Cruces, New Mexico TRUE WEST Manso Population United States (2010) - 200 J O R N A D A N