You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Oaxaca Remove constraint Place: Oaxaca Place Valley of the Yelagago River, ca. 20 mi n.e. of Villa Alta. Along trail between Villa Alta and Hallberg ranch, on ridge entering Yelagago valley, from peak of ridge (La Cumbre) to the spring (El Pozo) where elev. Drops sharply into valley. Remove constraint Place: Valley of the Yelagago River, ca. 20 mi n.e. of Villa Alta. Along trail between Villa Alta and Hallberg ranch, on ridge entering Yelagago valley, from peak of ridge (La Cumbre) to the spring (El Pozo) where elev. Drops sharply into valley. Topic Hymenophyllales Remove constraint Topic: Hymenophyllales Topic Hymenophyllum Remove constraint Topic: Hymenophyllum Topic Polypodiopsida Remove constraint Topic: Polypodiopsida Type still image Remove constraint Type: still image