That’s the one I can almost always see just out my window next to the computer. ;-D
It’s a big popular one, and handy for navigation and such. One of the ideas that’s popped up regarding the Arthurian legends is that Arthur was “the Bear” (somehow, that was his nickname), as Arth (Rth in Welsh) means Bear, and Ursa is Latin for “Bear” (thus, Arth-Ursa), and the later add-on tale of the Knights of the Round Table refers to the circling constellations.