http://book.klll.cc/ebooks/subject/32110.opds 2025-11-17T20:19:34Z Books about Mines and mineral resources -- California, Southern Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-17T20:19:34Z https://book.klll.cc/ebooks/56478.opds Old Mines of Southern California Harold W. Fairbanks and William H. Storms