A Vulcan lute on Aldea. The Vulcan lute (sometimes referred to as Vulcan harp, Vulcan lyre, or Vulcan Lyrette) was a twelve-stringed instrument, played on the planet Vulcan, that was tuned on a diatonic scale and noted to be very soothing.
Keystone Average Weather. 1  The highest monthly average temperature in Keystone for July is 54 degrees. 2  The lowest monthly average temperature in Keystone for December is 14 degrees.  The most monthly precipitation in Keystone occurs in January with 0 inches.
Keystone Lake Largemouth Bass Tips: [ Add Tip 1  ] Largemouth Bass Tips for Current Conditions (automated): 2  With Keystone Lake at 55 degree water temperature largemouth bass fishing is getting ready to ramp up. The male bass will start moving up from deep water toward spawning coves and the big ones are right behind them.