The phrase "a small outpost of" is correct and usable in written English.
It can be used to describe a minor or remote location that serves a specific purpose or function, often in a metaphorical sense.
Example: "In the vast expanse of the desert, there exists a small outpost of civilization where travelers can find refuge."
Alternatives: "a tiny enclave of" or "a modest station of".
It was beautifully wallpapered and carpeted, as if it were a small outpost of the living room.
Protestant Cluan Place is a small outpost of huge east Belfast; Catholic Clandeboye Gardens, which Cluan Place tucks into, protrudes from Short Strand into the Protestant heartland.
It is said to represent over half of the economy here on the Musandam peninsula, a small outpost of Oman north of the United Arab Emirates.
The British perfumer Lyn Harris also has a small outpost of her brand of bespoke scents, Perfumer H, nestled in the basement.
The player is Runner Five – you live in a small outpost of humanity among a sea of zombies, and you have to go out running to get supplies.
He joined Christie's in 1973 as director of its New York office, then a small outpost of the London-based auction house.
Acer, the computer company based in Taiwan, decided to test the waters with a modest assembly operation at Lappeenranta, a small outpost on the Finnish side of the border, about 620 miles from Moscow.
We felt that El Cap and the climbing culture at Yosemite deserved a separate write-up, so we did a small outpost on that near the bottom of this page.
At 04:00 a small outpost to the rear of the company position was attacked by more than 50 Chinese.
Sergeant Bales, 39, has been charged with walking off a small outpost in the Panjwai district of Kandahar Province early on the morning of March 11 , 2012 and shooting or stabbing to death 16 people, most of them children, in two villages.
Gen. Roger Turner, commander of the task force based at Camp Shorab, a small outpost next to the sprawling emptiness of Camp Leatherneck, an abandoned base that once housed more than 20,000 NATO troops.
