http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f4-subject=Altitudes -- Western States) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f4-subject%3DAltitudes%20--%20Western%20States Results for your query: docsPerPage=100;f4-subject=Altitudes -- Western States Thu, 01 Jan 1970 12:00:00 GMT Altitudes between Lake Superior and the Rocky Mountains. Upham, Warren, 1850-1934, United States Geological Survey. 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