The Yellowstone volcanic system has hosted some very large eruptions. But there have been much larger volcanic explosions in geologic history—including several in the western USA!

A group that long has questioned how the National Park Service manages bison at Yellowstone National Park wants to see tribal entities given co-stewardship of the iconic animals along with seeing their numbers rise 10-fold to 50,000 in the Greater Yellowstone Ecosystem.

Parks Canada is asking water recreationists to help prevent the spread of aquatic invasive species across the mountain national parks.

The 30-mile highway through Lassen Volcanic National Park in northern California has opened for the summer season, though sections might seem like winter. A higher-than-average snowpack slowed operations, but through the hard work of National Park Service and Caltrans road crews, the road has been fully cleared. Visitors to the park should prepare for winter conditions at higher elevations, and possible delays due to ongoing road work.