“The last standing Gold Ore mill”
The Wall Street Mill in Joshua Tree National Park was a complete and operable gold ore crushing mill featuring late-19th Century two-stamp mill machinery. Consequently the significance encompasses the mill machinery, the building which houses it, the well which supplied water for the mill's operation, and the well pump. It is the only gold ore crushing mill in the region that retains integrity. The stamp mill building is framed with heavy timber and built on a downward sloping hillside to take advantage of gravity in the milling process. The roof and some of the exterior walls are covered with corrugated sheet metal, while some of the exterior walls have either vertical or horizontal wooden siding. At the top of the building a long wooden ramp supports the track of an ore tramway which carried ore from where it was unloaded from trucks to the top of the mill above the two-stamp Baker Iron Works crusher. A gasoline engine powered the mill; it was built by the Western Gas Engine Company of Los Angeles. A Myer concentrating table was used in separating the gold from the ore. The complex included the mill, a well, a bunkhouse and an outhouse. The supporting buildings are largely ruinous.
If you're into hiking and/or ghost towns, then this is definitely worth a visit. It's a super easy hike, 1.5 miles out and back with no rock scrambling, and you can take some cool pictures of the abandoned mill.
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Wall Street Mill
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