You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Sierra del Laurel, ca. 10 miles southeast of Calvillo (2-3 hours by horse from Rancho de Los Adobes) Remove constraint Place: Sierra del Laurel, ca. 10 miles southeast of Calvillo (2-3 hours by horse from Rancho de Los Adobes)