You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Valley of Yelagago River, ca. 20 mi. n.e. of Villa Alta. Between Hallberg ranch and river to the south. Remove constraint Place: Valley of Yelagago River, ca. 20 mi. n.e. of Villa Alta. Between Hallberg ranch and river to the south.