The Blanco Dark Energy Camera (DECam) Bulge survey is a Vera Rubin Observatory (LSST) pathfinder imaging survey, spanning ∼ 200 sq. deg. of the Southern Galactic bulge, −2◦ <b< −13◦ and −11◦ <l< +11◦. We have employed the CTIO-4m telescope and the Dark Energy Camera (DECam) to image a contiguous ∼ 200 sq. deg. region of the relatively less reddened Southern Galactic bulge, in SDSS u + Pan-STARRSgrizy.