This is the 6512th most frequent Korean word.
연천
"연천" refers to Yeoncheon, a county in Gyeonggi Province, South Korea.
Here, '연천' is used as a proper geographic name, referring to a specific city in Korea.
연천은 경기도에 위치한 도시입니다.
Yeoncheon is a city located in Gyeonggi Province.
In this context, '연천' is again a proper noun, used in a conversational question about someone's experience visiting the city.
연천에 가본 적이 있습니까?
Have you ever been to Yeoncheon?
This usage of '연천' showcases its geographic identity as a location used to describe the subject of the sentence, which is the autumn scenery.