The Spot-crowned Woodcreeper (Lepidocolaptes affinis), is a passerine bird which breeds in the tropical New World from central Mexico in the east, the Sierra Madre Orientals, to northern Panama.
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It is believed that the groups occupying the zone were a branch of a larger group known by archeologists as Coahuilteco that inhabited the slopes of the Sierra Madre Oriental up to the southwest Texas in the lower Pecos River.
Centro de Investigaciones Científicas de las Huastecas 'Aguazarca' (CICHAZ) is a research station in Calnali, Hidalgo, Mexico located at an elevation of 986 m on the eastern slope of the Sierra Madre Oriental.
Jalap is a cathartic drug, its use largely archaic in the West, consisting of the tuberous roots of Ipomoea purga, a convolvulaceous plant growing on the eastern declivities of the Sierra Madre Oriental of Mexico at an elevation of 5000 to 8000 ft. above sea level, more especially about the neighbourhood of Chiconquiaco on the eastern slope of the Cofre de Perote in the state of Veracruz.