The park protects Lechuguilla Cave, the deepest limestone cave in the United States. Lechuguilla Cave was known for years as Misery Hole, a 400-foot long cave which was mined for guano in the early part of this century. For years, those entering noted a wind which issued from a rubble p...
rufous hummingbird on a branchRufous hummingbird (Selasphorus rufus) on a branch in North Cascades National Park, Washington, U.S. The geographic range of this species extends farther north than any other hummingbird species. All hummingbirds are small, and many are minute. Even the largest,...