This source of the Newlands Irrigation Project abuts Placer and Douglas Counties. Its arms include Emerald Bay and Fallen Leaf Lake, and among the cities on its shores are Crystal Bay, Vikingshol, and (*) Stateline. Its waters ultimately go to Pyramid Lake via the Truckee River. For 10 points— name 
This source of the Newlands Irrigation Project abuts Placer and Douglas Counties. Its arms include Emerald Bay and Fallen Leaf Lake, and among the cities on its shores are Crystal Bay, Vikingshol, and (*) Stateline. Its waters ultimately go to Pyramid Lake via the Truckee River. For 10 points— name this lake bisected by the California-Nevada border, a popular vacation destination.
This source of the Newlands Irrigation Project abuts Placer and Douglas Counties.
Lake Tahoe