Hamilton's hideaway

Hamilton's Hideaway is a small cave in the side of a cliff face in the Capital Wasteland. It is mentioned by Evan King in Arefu as a possible location of The Family as part of the Blood Ties quest.

Background
This underground complex was originally a well-prepared shelter for a family of three - a husband, his wife Maggie, and their daughter Robin, established due to a mistrust of Vault-Tec. Fitted with air filtration, chemical toilets, an artesian well, and a fusion generator, it provided a long-stay option until radiation levels subsided. This could imply that the unnamed writer of the terminal entries is called Hamilton, and that this locale was his hideaway.

The complex is also the site of a weapons cache to be used in "fighting the good fight." Three Dog's friend, under the alias "Copperhead", found a stash containing an abundance of ammunition that had been left inside the cavern by the military before the war. Following its discovery, Copperhead and his associates installed locks to keep the materiel from falling into the wrong hands.

Layout
Just north of Moonbeam Outdoor Cinema and southeast of Northwest Seneca Station, Hamilton's Hideaway is a network of tunnels that sprout from one single tunnel. Multiple catwalks lead over rock which leads into a hallway constructed of metal. The weapons cache for Caching in with Three Dog is located in the northwest corner of the hideaway, through a hole in the left wall.

Inhabitants
The cave itself is populated with variants of radscorpions, radroaches, two or three raiders, and sometimes a giant radscorpion near the raider hideout. Outside the cave random enemies may spawn, mostly mole rats and mirelurks, harder enemies may spawn at higher levels.
 * Some of these enemies will be dead when the player finds them, because radscorpions and raiders will fight each other.
 * Sometimes 1 or 3 dead wastelander bodies (that may have spawned alive) will appear.
 * At higher levels with Broken Steel installed, an albino radscorpion may be encountered.
 * When fast traveling here, on some occasions 3-4 yao guai will spawn.

Notable loot

 * Duck and Cover!, on the counter in the room with the raiders along with cherry bombs.
 * Nuka-Cola Quantum, on the same surface as the Duck and Cover!.

In the weapons cache

 * Guns and Bullets, on a footlocker.
 * Mini nuke, on a shelf.
 * Stealth Boy, on a shelf.
 * Notable amounts of common ammunition, and some frag grenades.

Related quests

 * Blood Ties
 * Caching in with Three Dog

Appearances
Hamilton's Hideaway appears only in Fallout 3.