Grizzly Bear invasion in the back yard. 4 Grizzly come into the backyard

This is game cam footage that the cam filed back in September 2021. It is a large Sow Grizzly, and what appears to be her 3 adult cubs. The Dogs kept them back from getting up to the house. Had been hearing the dogs barking for several nights, sat up the game cam. Figured I would see a bear. Was surprised to see 4 Grizzlies! Couple moments the bear got pretty aggressive with the dogs, and vise versa