Near Weaverville in Trinity County, California — The American West (Pacific Coastal)
Searching for Gold
Imagine a pile of dirt as big as 6 football fields and two miles high. That pile of dirt use to be where you are now standing. It is called Oregon Mountain. Hydraulic mining dissolved 90% of this mound in the quest for gold. From 1851 until 1933, Oregon Mountain was slowly washed down the Trinity River by “monitors.” This hydraulic mine was the largest in the world.
Building a Highway
The remaining 10% was washed away searching for another kind of gold… travel, tourism and trade. The California Department of Transportation liquidated what was left of Oregon Mountain to make a road cut. It took them 5 years of day and night washing with monitors to eliminate the mountain. In 1939 the last segment of Highway 299 was finished. The valley and coast were connected.
Trinity Scenic Byway: From the Valley Oaks to the Redwood Coast (California highway 299)
Location. 40° 44.32′ N, 122° 59.759′ W. Marker is near Weaverville, California, in Trinity County. Marker is on California Route 299, on the right when traveling east. Click for map. This marker is located near other markers in a large pull-off on the right side of California 299 at the Oregon
Other nearby markers. At least 8 other markers are within 3 miles of this marker, measured as the crow flies. The La Grange Mine (a few steps from this marker); Old Section (approx. 2.8 miles away); Weaverville Basin Gold Discovery Site (approx. 2.9 miles away); I.O.O.F. Hall (approx. 2.9 miles away); Trinity County Courthouse (approx. 2.9 miles away); Spiral Staircases (approx. 2.9 miles away); Site of First Cabin (approx. 2.9 miles away); Clifford Hall (approx. 2.9 miles away). Click for a list of all markers in Weaverville.
More about this marker. This marker is a large synthetic placard in very good condition.
Also see . . .
1. Giant Gold Machines - Hydraulic Mining.
This giant hydraulic monitor looks like a cannon. No wonder. It's a water cannon, and it could blast the mountains to smithereens, leaving huge craters. (Submitted on August 9, 2016, by Cosmos Mariner of Cape Canaveral, Florida.)
2. Monitors - Water Cannons of Hydraulic Mining.
Hydraulic mining was a variation on ground sluicing where the water delivered to the site would be shot through a nozzle at high pressure onto the face of the cliff, thereby washing away tons of boulders, gravel, dirt, and ounces of gold. (Submitted on August 9, 2016, by Cosmos Mariner of Cape Canaveral, Florida.)
Categories. • Industry & Commerce • Roads & Vehicles •
Credits. This page originally submitted on , by Cosmos Mariner of Cape Canaveral, Florida. This page has been viewed 110 times since then. Photos: 1, 2, 3, 4, 5. submitted on , by Cosmos Mariner of Cape Canaveral, Florida. • Syd Whittle was the editor who published this page. This page was last revised on August 17, 2016.