Black and white photograph showing rail carriage being transported on cables in a mountainous area.

Group photograph of passengers on the Mount Lowe Railway, a rail car that ascended Echo Mountain. A sign reads 'Echo Mountain, 3,500 feet above sea level'. A streetcar is to the right of the cablecar. The Mount Lowe observatory can be seen in the background of the photograph.

Black and white photograph of M M O'Shaughnessy and a group of four men standing on a railroad construction site.

Letter from H P Winslow, Mountain Mining Company to M M O'Shaughnessy. Winslow is writing to update O'Shaughnessy on the weather, which has affected progress on the grading work he is carrying out.

Telegram from Winslow, Mountain Mining Company to M M O'Shaughnessy requesting a cook at once. A handwritten note from O'Shaughnessy at the back advises a good cook is departing that night.

Blueprint drawing titled Plan No 1 Mountain Mining Company showing location of workings and buildings, Shasta Co, California. The map marks out iron claims, and handwritten notes in red mark a railroad and wagon road. The map was surveyed by M M O'Shaughnessy, CE. Drawn at a scale of 50 feet to 1 inch.

Blueprint drawing titled Plan No 1 Mountain Mining Company showing location of workings and buildings, Shasta Co, California. The map marks out iron claims, and is identical to P135/1/2/2/1/3, with the addition of a grid over the plan. The map was surveyed by M M O'Shaughnessy, CE. Drawn at a scale of 50 feet to 1 inch.

Blueprint map showing relative position of Mountain Mines to principal cities and shippings ports by railroad and water in State of California. The map was drawn by George Sandon, Draughtsman. It contains 3 sections, each drawn at different scales.