  The DECam Plane Survey is a five-band optical and near-infrared survey of the
southern Galactic plane with the Dark Energy Camera at Cerro Tololo. The survey
is designed to reach past the main-sequence turn-off at the distance of the
Galactic center through a reddening E(B-V) of 1.5 mag. Typical single-exposure
depths are 23.7, 22.8, 22.3, 21.9, and 21.0 mag in the grizY bands, with seeing
around 1 arcsecond. The footprint covers the Galactic plane with |b| < 4
degrees, 5 degrees > l > -120 degrees. The survey pipeline simultaneously
solves for the positions and fluxes of tens of thousands of sources in each
image, delivering positions and fluxes of roughly two billion stars with better
than 10 mmag precision. Most of these objects are highly reddened and deep in
the Galactic disk, probing the structure and properties of the Milky Way and
its interstellar medium. The full survey is publicly available.
