Project Gutenberg 2019-04-12 Public domain in the USA. 172 Contor, Roger J. 1930 Contor, Roger Jacob The Underworld of Oregon Caves National Monument Produced by Stephen Hutcheson and the Online Distributed Proofreading Team at http://www.pgdp.net "The Underworld of Oregon Caves National Monument" by Roger J. Contor is a scientific publication written in the early 1960s. This work focuses on the geological and biological aspects of the Oregon Caves, exploring the processes that formed these unique underground structures and the life they harbor. The book serves to educate visitors and enthusiasts about the significance of the caves and the delicate balance of the natural forces that shape them. In this detailed exploration, Contor delves into the geological history of the Oregon Caves, describing the formation of the areas' marble composition and how water erosion led to the creation of the cave systems. He discusses the various cave features, known as speleothems, such as stalactites and flowstones, resulting from mineral deposits. Additionally, the book touches on the various forms of life—like bats and unique plants—adapting to this subterranean environment. Contor emphasizes the importance of conservation for the Oregon Caves, outlining the human history of their discovery and the need to preserve their fragile formations for future generations to enjoy. (This is an automatically generated summary.) Reading ease score: 63.7 (8th & 9th grade). Neither easy nor difficult to read. en Oregon Caves National Monument (Or.) F850.5 Text Category: Science - Biology Category: Science - Earth/Agricultural/Farming Category: Environmental Issues Category: Archaeology & Anthropology 105349 2025-09-23T12:35:41.655036 text/html 97922 2019-04-12T14:13:54 text/html 5234832 2025-09-23T12:35:47.941988 application/epub+zip 5235652 2025-09-23T12:35:44.513052 application/epub+zip 101497 2025-09-23T12:35:42.968033 application/epub+zip 5273241 2025-09-23T12:35:49.959996 application/x-mobipocket-ebook 5252819 2025-09-23T12:35:46.533021 application/x-mobipocket-ebook 135693 2022-09-26T22:04:16.513687 application/x-mobipocket-ebook 75818 2025-09-23T12:35:41.047056 text/plain; charset=us-ascii 76059 2019-04-12T14:13:50 text/plain; charset=us-ascii 18410 2025-09-23T12:35:50.090966 application/rdf+xml 31157 2025-09-23T12:35:43.060005 image/jpeg 4506 2025-09-23T12:35:43.015011 image/jpeg 28532 2019-04-12T14:13:54 application/octet-stream application/zip 5150057 2019-04-12T14:13:56 application/octet-stream application/zip 5170458 2025-09-23T12:35:41.775046 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog