We present evidence for a new Milky Way stellar tidal stream in the direction of the Andromeda and Triangulum ( M31 and M33 ) galaxies .
Using a matched-filter technique , we search the Sloan Digital Sky Survey Data Release 8 by creating stellar density maps which probe the Milky Way halo at distances between 8 and 40 kpc .
A visual search of these maps recovers all of the major known stellar streams , as well as a new stream in the direction of M31/M33 which we name the Triangulum stream .
The stream spans 0.2 ^ { \circ } by 12 ^ { \circ } on the sky , or 75 pc by 5.5 kpc in physical units with a best fitting distance of 26 \pm 4 kpc .
The width of the stream is consistent with being the tidal remnant of a globular cluster .
A color magnitude diagram of the stream region shows an overdensity which , if identified as a main sequence turn-off , corresponds to an old ( \sim 12 Gyr ) and metal-poor ( [ Fe/H ] ~ { } \sim - 1.0 dex ) stellar population .
Future kinematic studies of this and similar cold streams will provide tight constraints on the shape of the Galactic gravitational potential .