Silo

Silos are large structures for storing bulk materials. In general they were used for two main purposes before the Great War:
 * By the United States Armed Forces for storing and launching intercontinental ballistic missiles (ICBM).
 * In agriculture to store grain.

Remnants of both types still can be found all over the wastes.

Apart from this, "The Silo" is also the name of a quest in the Fallout: New Vegas add-on Lonesome Road.

Quests

 * The Silo

ICBM silos

 * Ashton missile silo – An ICBM silo in the Divide, or its control station.
 * Fort Bannister – A nuclear missile silo can be found in one of the buildings.
 * Fort Constantine – A bomb storage building to the north.
 * Hopeville missile silo – Another ICBM silo in the Divide, or its entrance area.
 * Wheaton armory – On the bottom floor, accessible through the bunker's entrance, a missile launch platform can be found.

Grain silos
Grain silos can be found at numerous locations in both, the Capital and the Mojave Wasteland. The most noticeable are listed here:
 * Chaste Acres dairy farm – A walkable silo can be entered here, containing a copy of Pugilism Illustrated among other things.
 * Enclave outpost – Halfway between Springvale School and the Super-Duper Mart a ruined house with a grain silo can be found, with an Enclave camp nearby.
 * Montgomery County reservoir – The Fallout 3 add-on Broken Steel adds a walkable silo to this area, in which barrels of Aqua Pura can be found after the completion of Take it Back!.
 * Reclining Groves Resort Homes – There's a grain silo next to the scavenger's barn.

World objects

 * Grain silo – The structure found at the locations in the section above.