Heavy snowfall in Glacier National Park this week has heightened avalanche danger along the Going-to-the-Sun Road and prompted officials to limit access to the road, which has yet to be cleared from end-to-end from winter's snows.

A cleaner Chesapeake Bay watershed. That's the goal of a multi-state agreement written to focus on restoring and protecting the bay and its feeder streams. If it succeeds, it would benefit a good number of National Park System units, foremost the Captain John Smith Chesapeake National Historic Trail that touches parts of Virginia, Delaware, Maryland and the District of Columbia.

It’s hot here. Welcome to the beginning of summer in the Southwest. Two days ago it was raining and near freezing and I was complaining about it at Mesa Verde and now it’s sweat time. But those rains have turned the Needles District of Canyonlands National Park into a veritable flower garden. Everywhere I look there are blooms.

Washington state’s Puget Sound is a forested metropolis, braided with inlets and bays and ringed by steep, glacier-clad peaks. On the west skyline, the stately, wet Olympic Mountains grab moisture from the ocean clouds to nurture the temperate rain forest of Olympic National Park. To the east the queen-mother’s throne, nearly three-mile-high Mount Rainier, holds court on clear days in its namesake park.