http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f8-subject=Black Hills (S.D.)) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f8-subject%3DBlack%20Hills%20(S.D.) Results for your query: docsPerPage=100;f8-subject=Black Hills (S.D.) Thu, 01 Jan 1970 12:00:00 GMT The Black Hills: a description of a wonderful and picturesque mining region and natural sanitarium. Chicago and North Western Railway Company https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT