Nogueleras.—Lat. 18° 34', long. 103° 17', elev. 1600 m. A ranch about 10 hours by mule south-southwest of Coalcomán; oak forest.
Nueva Italia.—Lat. 19° 02', long. 102° 07', elev. 380 m. A town in the Tepalcatepec Valley, 59 kilometers by road south of Uruapan; arid tropical scrub forest.
Nuevo (Rancho).—Lat. 18° 26', long. 102° 07', elev. 520 m. A ranch 7 kilometers by road north-northeast of San Salvador in the northern foothills of the Sierra de Coalcomán; arid tropical scrub forest.
Ocorla.—Lat. 18° 38', long. 103° 07', elev. 885 m. A ranch about 6 hours by mule south-southeast of Coalcomán; scrubby oak forest.
Opopeo.—Lat. 19° 24', long. 101° 37', elev. 2800 m. A village 16 kilometers south of Pátzcuaro; pine and fir forest.
Orilla (La).—Lat. 18° 00', long. 102° 12', elev. 10 m. The site of a former hacienda of the same name near the mouth of the Río Balsas; arid tropical scrub forest.
Oropeo.—Lat. 18° 52', long. 101° 48', elev. 300 m. A village in the Tepalcatepec Valley about 13 kilometers south of La Huacana; arid tropical scrub forest.
Ostula.—Lat. 18° 30', long. 103° 28', elev. 120 m. A village in the seaward foothills of the Sierra de Coalcomán, located on the Río Ostula about 16 kilometers east-southeast of La Placita; arid tropical scrub forest and scattered tropical semi-deciduous forest.
Ozumatlán (Sierra de).—A range in the Cordillera Volcánica extending east-northeast from a point south of Morelia to Queréndaro and reaching elevations in excess of 2600 m.
Palma (La).—Lat. 20° 09', long. 102° 46', elev. 1525 m. A village on the southeastern shore of Lago de Chapala; lake-shore marshes and mesquite-grassland.