Here's a shot (click for larger image) from my flight to Chicago last week as the plane headed northeast toward the north end of Lake Tahoe. That's French Meadows Reservoir, on the Middle Fork of the American River, at the top, Hell Hole Reservoir, on the Rubicon River, at the bottom.
Both reservoirs are at about 25 to 30 percent capacity; Hell Hole is at about 50 percent of its average level for this time of year, French Meadows is at about 66 percent average. Both are operated by the Placer County Water Agency, which supplies or sells water to in much of the Sacramento metropolitan area and northeast along the Interstate 80 corridor.
Besides the signs of drought in the image, one other notable feature: the brown area to the lower left and between the two reservoirs is part of the 97,000 acres burned in the King Fire in September.