Duero (Río).--A small river having its headwaters near Tangancícuaro and flowing northwestward into the Río Lerma; source of irrigation water for surrounding agricultural area. Emiliano Zapata.--Lat. 18° 59', long. 102° 39' elev. 1600 m. A town 10 kilometers east of Jiquilpan; mesquite-grassland and irrigated fields. Erongaricuaro.--Lat. 19° 35', long. 101° 43', elev. 2150 m. A Tarascan village on the western shore of Lago de Pátzcuaro; pine forest. Espinal (El).--Lat. 18° 27', long. 102° 07', elev. 500 m. A ranch in the northern foothills of the Sierra de Coalcomán, 9 kilometers by road north-northeast of San Salvador; arid tropical scrub forest. Estopilas (Salitre de).--Lat. 18° 30', long. 103° 23', elev. 130 m. A small village about 10 kilometers east of Ostula; tropical semi-deciduous forest and arid tropical scrub forest. Garnica (Cerro).--Lat. 19° 43', long. 100° 48', elev. 3000 m. A mountain about 8 kilometers north of Pino Gordo; pine-oak-fir forest. Garnica (Puerto de).--Lat. 19° 42', long. 100° 51', elev. 2840 m. A mountain pass 46 kilometers by road west of Ciudad Hidalgo; pine and fir forest. Gregorio (San).--Lat. 19° 25', long. 101° 24', elev. 2200 m. A ranch about 16 kilometers southeast of Pátzcuaro; pine forest. Guayabo.--Lat. 18° 45', long. 102° 15', elev. 760 m. A village in the Sierra de Coalcomán about 32 kilometers north-northeast of Arteaga; upper limits of arid tropical scrub forest. Herradero (Barranca de).--Lat. 18° 17', long. 103° 08', elev. 200-250 m. A barranca south of San Pedro Naranjestila in the Sierra de Coalcomán; tropical semi-deciduous forest. Hidalgo (Ciudad).--Lat. 19° 32', long. 100° 34', elev. 2100 m. A town in the valley of the Río Tuxpan; mesquite-grassland and pine-oak forest. Higuerita (La).--Lat. 18° 12', long. 103° 06', sea level. A place name on the Pacific coast; sandy beach and arid tropical scrub forest. Higuertas (Las).--Lat. 18° 39', long. 103° 17', elev. 1600 m. A ranch about 7 hours by mule southwest of Coalcomán; pine-oak forest. Hondo (Puerto).--Lat. 19° 25', long. 100° 13', elev. 2750 m. A pass in the mountains, 14 kilometers by road east of Zitácuaro (just west of Macho de Agua); pine, oak, and fir forest. Huancana (La).--Lat. 18° 58', long. 101° 50', elev. 550 m. A village in the Balsas Basin; arid tropical scrub forest. Huahua (La).--Lat. 18° 12', long. 103° 00', sea level. A small village on the Pacific coast; arid tropical scrub forest and gallery forest along the Arroyo de Huahua. Huetamo.--Lat. 18° 38', long. 100° 53', elev. 300 m. A town in the Balsas Valley; arid tropical scrub forest.