http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f277-subject=Mining camps -- Arizona -- History) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f277-subject%3DMining%20camps%20--%20Arizona%20--%20History Results for your query: docsPerPage=100;f277-subject=Mining camps -- Arizona -- History Thu, 01 Jan 1970 12:00:00 GMT Arizona ghost towns and mining camps. Varney, Philip. 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