NPLD 2016
JOHN MARTIN RESERVOIR, Colo., -- Volunteers work to remove invasive trees on National Public Lands Day, Sept. 24, 2016. The work improved nesting habitat for the endangered interior least tern and threatened piping plover birds which like to nest at the reservoir.

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Photo by: John Martin Reservoir staff |  VIRIN: 160924-A-CE999-015.JPG