Historical Marker · No. 778
La Grange Mine (Hydraulic)
Weaverville, Trinity County · California
Erected by California State Park Commission; Mt. Bally Parlor No. 87, Native Sons of the Golden West; Trinity County Historical Society; Trinitarianus Chapter, E Clampus Vitus, 1963
The bronze stops in 1918, when post-war costs shut the mine. The mountain got no such reprieve. What was left of Oregon Mountain stood in the way of the highway west from Weaverville, and the state's Division of Highways finished the job with the miners' own tool, playing monitors on it day and night for about five years; its magazine showed the completed hydraulic cut in 1939. The road you drove in on runs through it. The bronze also compresses the owner's name: Lagrange, for the French baron Ernest de la Grange.
What the plaque says
The Lagrange Mine This mine, originally known as the Oregon Mountain group of claims, first operated about 1862. In 1892 the mine was purchased by the Lagrange Hydraulic Gold Mining Company which brought water from Stuart's Fork through 29 miles of ditch, tunnels and flume and delivered it to the mine pit under a 650 foot head. Over 100,000,000 yards of gravel were moved and $3,500,000 in gold produced. Large scale operations ceased in 1918. California Registered Historical Landmark No. 778 Plaque placed by the California State Park Commission in cooperation with the Mt. Bally Parlor No. 87, Native Sons of the Golden West; Trinity County Historical Society; and Trinitarianus Chapter, E Clampus Vitus, June 9, 1963.
Where it stands
40.73861, -122.99611 · Directions
More markers nearby
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