f a former hacienda of the same name near the mouth of
the Rio Balsas; arid tropical scrub forest.

Oropeo.--Lat. 18 deg. 52', long. 101 deg. 48', elev. 300 m. A
village in the Tepalcatepec Valley about 13 kilometers south
of La Huacana; arid tropical scrub forest.

Ostula.--Lat. 18 deg. 30', long. 103 deg. 28', elev. 120 m. A
village in the seaward foothills of the Sierra de Coalcoman,
located on the Rio Ostula about 16 kilometers east-southeast
of La Placita; arid tropical scrub forest and scattered
tropical semi-deciduous forest.

Ozumatlan (Sierra de).--A range in the Cordillera Volcanica
extending east-northeast from a point south of Morelia to
Querendaro and reaching elevations in excess of 2600 m.

Palma (La).--Lat. 20 deg. 09', long. 102 deg. 46', elev. 1525 m. A
village on the southeastern shore of Lago de Chapala;
lake-shore marshes and mesquite-grassland.

Paracho.--Lat. 19 deg. 39', long. 102 deg. 02', elev. 2375 m. A
Tarascan village in the Cordillera Volcanica, located 35
kilometers by road north of Uruapan; pine forest.

Parangaricutiro (San Juan de).--Lat. 19 deg. 30', long. 102 deg.
15', elev. 2200 m. A former Tarascan village that was
destroyed by the eruption of Volcan Paricutin; lava and
volcanic ash amidst open pine forest.

Paricutin (Volcan).--Lat. 19 deg. 30', long. 102 deg. 16', elev.
2200 m. at base and 2700 m. at summit. A volcano born in
February, 1943; it ceased to be active in December, 1951,
and is located at the north-northeastern base of Cerro de
Tancitaro; volcanic ash and lava amidst open pine forest.

Paso Ancho.--Lat. 19 deg. 28', long. 100 deg. 52', elev. 1100 m. A
small village 30 kilometers south of El Temazcal on the road
to Huetamo; arid tropical scrub forest.

Patamba (Sierra).--Lat. 19 deg. 45', long. 102 deg. 21', elev. 3700
m. at summit. A mountain, the summit of which is about 22
kilometers southwest of Tangancicuaro; pine forest from 2000
to 2600 m.; fir forest above 2600 m.

Patzcuaro.--Lat. 19 deg. 30', long. 101 deg. 36', elev. 2200 m. A
town near the southeastern shore of Lago de Patzcuaro; pine
forest.

Patzcuaro (Lago de).--A large lake on the southwestern part
of the Mexican Plateau at an elevation of 2165 m. It has no
outlet. The lake is surrounded by mou