Wife Sarah and I moved five miles to the north of Fort Bragg in 2000. When the conditions were right we could hear the ULC whistle clearly. When I heard that the whistle was to blow no more I went in to Fort Bragg to hear its sad  farewell.

The ULC Whistle

I have been unable to find a recording of the ULC whistle. However, these two vids sorta give you and idea.