where Colima borders Jalisco, there is a large canyon that forms the border. The Amería River divides the municipality into two regions. The west is more rugged with the Cerro Grande and the Sierra de Manatlán. The southeast is more level as it is part of the Valley of Colima. The two volcanos form part of the municipality's and state's northern border. Other rivers and streams in the municipality include Zacualpan, San Antonio, Los Mezcales, La Caja, San Juan, Nogueras and the Comala River tributaries Reynosa, Suchtlán and Barragana. There are also lakes called Carrizalillos, La Joya, El Obispo, Palo Alto, Las cuatas, El Calabozo, El Epazote, La Escondida, El Jabalí and La María. The Peñitas Dam was constructed in Comala in 1963 to provide water for the municipalities of Colima, Comala, Coquimatlán and Villa de Alvarez. Today the reservoir covers 10,217 hectares and fed by the Armería River. The south has a hot and fairly humid climate. The north has a more humid climate and the southwest the most humid. The average temperature for the entire municipality is varies between 23C in January and 27C in June. Most rain falls from May until September. The natural vegetation of the area is low growth rainforest with some species that lose their leaves in the dry season. The most important commercial species are ash, holm oak and a species called librillo. Most forestry occurs on the Cerro Grande. Wildlife consists of mammals such as deer, foxes, coyotes, raccoons, opossums and wild boar. Other species include squirrels, moles, quail, chachalaca, woodpeckers, buzzards, parrots and many other types of birds. The municipality has a large percentage dedicated to conservation. The Volcano de Colima National Park is partly in the municipality and was decreed in 1936. El Jabalí was created in 1981 as a protected forest and wildlife refuge. The Sierra de Manantlán Biosphere Reserve was created in 1987 and the Las Huertas de Comala is protected area created in 1988. Climate History The name means “place of comals” a type of cooking vessel. Comala means place of comals derived from the word comalli with the suffix –an meaning place from Nahuatl. The municipal seal was created by Alvaro Gabrial Rivera Muñoz and chosen during a contest held in 1984. It contains emblematic images related to the municipality such as the volcano, a walnut tree, the former hacienda of San Antonio, the Carrizalillos Lake,