[76834]

Here's the ideal place:

Agattu Island (uh-GAH-too) (18 mi/29 km long, 4 mi/6.4 km–9 mi/14.5 km wide), Near Islands., Aleutian Islands., SW Alaska, 20 mi/32 km SE of Attu Isl.; 52°26'N 173°34'E. Rises to 2,075 ft/632 m. Uninhabited, mountainous, treeless and very cold

[Kadric]

It won't work since it is part of a state, which is why we are using Gitmo it's not USA territory but leased from Cuba.

Requirements
Non USA territory,
Isolated,
No Resources,
Little land suitable for food production,