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1861 Valley of Humboldt River at Lassen's Mea … Exploration Book Valley of the Humboldt River at Lassen's … |
1861 Madelin Pass. Exploration Book Madelin Pass. June 19th at 2 P.M. view t … |
1861 West End of Madelin Pass. Exploration Book West End of Madelin Pass. June 26th at 8 … |
1861 No. Slopes of the Sierra Nevada. Exploration Book Northern Slopes of the Sierra Nevada. Ju … |
1861 Portion, main mountain passage of Upper … Exploration Book Portion of the main mountain passage of … |
1861 Valley of the Mud Lakes. Exploration Book Valley of the Mud Lakes showing eighty t … |