In 1884, Loon Lake Reservoir was constructed to supply water to Georgetown Ridge for the gold mines. Water in Loon Lake was diverted into canals still visible today. That water flowed all the way to Georgetown and drained back into Pilot Creek. The filling and subsequent release of water from Loon Lake for power generation can vary the lake level as much as 36 feet up or down.
Our cloudburst moved out over the lake. Only raining in that one spot.
Chris lives nearby and had never been up here. Pretty cool place!
There is a powerhouse is a short distance away from our position atop the earthen dam and was completed in 1971. To create what you see today, Loon Lake and Pleasant Lake were joined to form the 1400-acre reservoir. The power generating center is actually 1200 feet below the lake drilled though the ancient rock.
Hydro-electric power is produced by connecting all the lakes in this region with penstocks, using the same water over and over by dropping the water from one lake to the next lower level, than again to the next lower lake. This area of man-made reservoirs actually totals not just this earthen dam at Loon Lake- but 10 more dams, 11 turbines, 8 powerhouses, and several other dikes and dams along the upper American River. Total installed capacity is over 687 MW, producing 1.8 billion KWh annually, enough for 20 percent of the nearby Sacramento’s electricity needs.
The annual Jeepers Jamboree started in 1952 with 55 vehicles, and will be attended present-day by over 200 rock crawling vehicles. The eastern maintained portion of the trail is called the McKinney Rubicon Springs Road.
Paving on Ice House Rd ends when it reaches Loon Lake Dam, then it descends to the Loon Lake Rubicon Trailhead at the base of the earthen dam. The famous 22-mile Rubicon Trail starts here along Gerle Creek, and pops out near Tahoma along Lake Tahoe.
There are always rock crawlers headed up here to run the Rubicon Trail.
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