The National Park Service's National Leadership Council met in Ohio last week. The meeting of the agency's top management was supposed to be the first under the direction of Jon Jarvis as Park Service director. Political gamesmanship, and apparently a dose of bureaucracy, unfortunately left Mr. Jarvis wearing his Pacific West Region director's hat.

A grizzly sow that had come to view humans as a source of food in Glacier National Park has been killed by rangers, who also accidentally killed one of her yearling cubs when they tried to tranquilize it. The killings Monday brought to a close a long-running effort by park rangers to get the sow and her two cubs to rely on their natural food sources and to avoid backcountry travelers.

Natural events — wildfires, floods, windstorms — often leave behind obvious marks on the landscapes they touch. Charred trees and scorched meadows, washed out trails, and swaths of fallen trees are some of the reminders of these powerful forces. The impacts wrought by other naturally occurring events and cycles are not always so easy to discern.

A team of international scientists will visit Glacier National Park and its northern neighbor, Waterton Lakes National Park, in September to study risks that might be posed by coal mining in British Columbia not far from the parks.