While it is not unusual for a grizzly mom to have two cubs in Yellowstone National Park, three cubs is pretty rare, and a huge handful for her. Watching over three cubs is a challenge, as wildlife watchers learned first-hand shortly after this photo was taken.
The mother bear had been seen frequently in the area between Mary Bay and Lake Hotel. In fact, she had a regular route that she took in a big circle between those two locations. If you watched long enough, you began to learn her preferred path and habits.