Bear jams are a growing problem at National Parks – here’s how to watch a grizzly without causing one

Black bear walking across road at Yellowstone National Park.

Picture the scene. You’re driving through Lamar Valley in beautiful Yellowstone National Park when suddenly, a dark moving figure off to the side of the road catches your attention. A bear and her cubs!

There’s nowhere to pull off, but no way you’re missing out on this wildlife viewing opportunity, plus the two cars ahead have already pulled over. So you pull as close to the side of the road as you can and jump out without even lacing up your hiking boots to get a closer look.