"The Black Hills of South Dakota is a forested island in the grassland ocean of the Great Plains. This region is unique from its geology to the distinctive ecosystems within its border. Froiland's book does a superb job of introducing a student of natural history to the Black Hills. . . . Of particular interest is his writings about the Sioux. . . . The biological information section includes the most comprehensive material in the book." - from a review in Great Plains Research (2018)