Woodland Park Zoo is mourning the loss of Helen, the matriarch of their snow leopards, while simultaneously celebrating the first birthday of her grandchildren, snow leopard cub triplets.

The National Parks Conservation Association says the White House's budget reductions are the largest proposed cuts to the National Park Service in its 109-year history and could "decimate at least ...

The Department of the Interior is requiring the National Park Service to post signs nationwide by June 13 asking visitors for feedback on any information they feel misrepresents American history.