Heavy rains that have been pounding eastern Colorado have been creating some problems at Rocky Mountain National Park, where interior park roads have been closed by the deluge.

Unless things change, it will take centuries for many national parks to have truly clean air, according to the National Parks Conservation Association, which wants the Obama administration to close loopholes that stand in the way of improving air quality.

Saul Weisberg, co-founder and executive director of North Cascades Institute, has been recognized for his national and regional leadership with two professional awards: The Association of Nature Center Administrators’ 2013 Nature Center Leadership Award and Re Sources’ 2013 Environmental Heroes Award.

A small, single-engine plane crashed in Grand Teton National Park on Wednesday, killing two people on board.