As Mount Rainier National Park struggles at times with long lines of vehicles trying to get into the park, officials are reaching out to the public for suggestions on how best to resolve the issues.

An Alaska man who killed a Dall sheep in Wrangell-St. Elias National Park and Preserve wound up forfeiting the kill after he needed to be rescued from a precarious perch on a scree cliff.

Nearly 50 bird species have been absent from Quitobaquito Springs in Organ Pipe Cactus National Monument in southern Arizona since the U.S. Army Corps of Engineers began building a wall in a bid to thwart cross-border crossings, according to ecologists.

Concerns that Tule elk at Point Reyes National Seashore don't have enough water for survival prompted a letter Monday to the seashore's acting superintendent, the National Park Service's acting director, and Interior Secretary David Bernhardt asking that they ensure the elk don't die from thirst.