While on vacation, my family and I ran across this Mama Grizzly and her three cubs in Yellowstone National Park. As the traffic came to a stand still, I hopped out and ran up to film while the lone park ranger tried to keep everyone safe.
A woman with two large dogs in the back of her truck pulled up and really set the bears off (and the ranger!). I left the footage pretty much intact so as to capture how intense and amazing the encounter was for everyone.