http://book.klll.cc/ebooks/subject/27353.opds 2025-11-15T00:51:00Z Books about Geology -- Oregon -- Grant County Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-15T00:51:00Z https://book.klll.cc/ebooks/46969.opds The Geologic Setting of the John Day Country: Grant County, Oregon Thomas P. Thayer