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 is located at 39Â°36â²15â³N 105Â°56â²53â³Wï»¿ / ï»¿39.604233Â°N 105.948111Â°Wï»¿ / 39.604233; -105.948111. According to the United States Census Bureau, the CDP has a total area of 40.6 square miles (105 km 2), of which, 40.6 square miles (105 km 2) of it is land and 0.02% is water.