A branch drain accepting waste products delivered to it vertically, by gravity, from one or more similar but usually smaller fixtures, and conducting them horizontally to the primary disposal drain.
When the Minuteman III retires, the silos and launch facilities at Malmstrom Air Force Base in Montana, which oversees 150 nuclear ICBMs scattered across a 13,800 square miles, will have been buried for 70 years.
UFOs are swirling around the Clintons -- yes, both of them. Last year, former President Bill Clinton told Jimmy Kimmel (see video below) that he actually tried to find out what was going on at Area 51, the top secret military base north of Las Vegas. According to many UFO activists, that's where clandestine U.S. military groups have hidden remnants of crashed flying saucers.