Alley behind Tierra y Libertad Organization (TYLO), a Tucson-based grassroots neighborhood organization in Barrio Wakefield. The alley is located in the 3600 block between South 6th and 7th Avenues. Photo was taken on Oct. 28, 2015.
That's actually only the left end of a long and exquisitely-painted mural. I stitched together a panorama.
There are more murals — not as long or polished as this one, but still impresssive — at IncrediblAlley.