Project Gutenberg 2020-10-21 Public domain in the USA. 153 Knowlton, Frank Hall 1860 1926 Knowlton, F. H. (Frank Hall) Fossil Forests of the Yellowstone National Park Produced by Stephen Hutcheson and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/American Libraries.) "Fossil Forests of the Yellowstone National Park" by Frank Hall Knowlton is a scientific publication written in the early 20th century. The book focuses on the remarkable fossil forests found within Yellowstone National Park, discussing their formation, geological context, and significance. Through detailed observations, the author illustrates how these ancient trees were preserved in their upright positions by volcanic materials, providing a unique glimpse into the region's ecological history. In this work, Knowlton details various locations within the park, such as Specimen Ridge and Amethyst Mountain, where fossilized trunks can still be seen today. He describes the composition of the forests, identifying numerous species of trees and illustrating the processes of fossilization that led to their preservation. The book emphasizes the interplay between geological activity and the flora of the area, suggesting that these fossil forests were formed during times of volcanic eruptions that buried the trees before they decayed. The author also reflects on the climatic conditions of the past, indicating that they were likely different from what can be observed in Yellowstone today, thus enriching our understanding of the park's geological and botanical heritage. (This is an automatically generated summary.) Reading ease score: 57.6 (10th to 12th grade). Somewhat difficult to read. en Petrified forests Paleobotany -- Yellowstone National Park Trees, Fossil -- Yellowstone National Park QE Text Category: Science - Earth/Agricultural/Farming Category: Nature/Gardening/Animals Category: Environmental Issues 100283 2025-07-25T08:16:12.721133 text/html 72408 2024-10-18T07:22:24 text/html 3640316 2025-07-25T08:16:20.520085 application/epub+zip 3640110 2025-07-25T08:16:16.400125 application/epub+zip 95950 2025-07-25T08:16:14.153130 application/epub+zip 4146394 2025-07-25T08:16:22.590119 application/x-mobipocket-ebook 4125413 2025-07-25T08:16:18.459096 application/x-mobipocket-ebook 124390 2022-09-28T16:42:04.455183 application/x-mobipocket-ebook 71895 2025-07-25T08:16:12.160126 text/plain; charset=us-ascii 51960 2024-10-18T07:22:24 text/plain; charset=us-ascii 17198 2025-07-25T08:16:22.723093 application/rdf+xml 16062 2025-07-25T08:16:14.240125 image/jpeg 2367 2025-07-25T08:16:14.196121 image/jpeg 3914880 2025-07-25T08:16:12.799123 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 en.wikipedia