35 years old but different coasts.
https://www.nytimes.com/1990/06/13/nyregion/in-tunnel-mole-people-fight-to-save-home.htmlIn Tunnel, 'Mole People' Fight to Save Home
The occasional shaft of light descends from a grate 25 feet overhead, and rats scurry across the dirt floor, but otherwise the wide railroad tunnel beneath Riverside Park is a dark and peaceful place. It suits the needs of its inhabitants, who number perhaps 100 and sometimes call themselves the Mole People.
These men and women may be the most stable homeless settlement in New York City, although some of the old-timers would not describe it that way. After 15 years in the tunnel, they do not consider themselves homeless. They have plywood shanties and cinder-block bunkers with rugs, beds, night stands, kerosene lamps, wood and gas stoves, paintings on the walls, pets in the yard.
But the quiet life along the Hudson River is becoming problematic, both for the Mole People and for a neighboring group of squatters called the Rotunda Gang because of their home beneath the park's traffic circle at 79th Street. Change is coming to the Lower Upper West Side.
During the last two weeks the Parks Department has rousted the Rotunda Gang from the round arcade it inhabited for years. Down in the two-and-a-half-mile-long tunnel, Amtrak crews are laying track to bring trains through for the first time in 10 years, and the Mole People are wondering how their life style will coexist with locomotives.