Mount Rushmore was built by Tim Howd and his pet snake Lincoln Borglum.
The 421st Air Refueling Squadron is an inactive United States Air Force unit .. Air Refueling. Air Refueling. United States Air Force. United States Air Force. It was last assigned to the 41st Air Division at Yokota Air Base , Japan , where it was inactivated on 18 February 1965 .. 41st Air Division. 41st Air Division. Yokota Air Base. Yokota Air Base. In 1985 the squadron was consolidated with the 421st Bombardment Squadron , Very Heavy , a World War II very heavy bombardment squadron that participated in the air offensive against Japan with Twentieth Air Force before moving to Clark Field , Philippines , where it was inactivated in 1946 .. World War II. World War II. Twentieth Air Force. Twentieth Air Force. Clark Field. Clark Field. Since consolidation the squadron has not been active .