The Giant Molecular Outflow in Mon R2.

We present CO J=1-0, CS J=2-1, and CS J=5-4 observations of the energetic molecular outflow and the dense molecular core associated with the Mon R2 infrared cluster. The CO observations are used to determine the mass, energetics, structure and morphology of the outflow. The outflow is found to have a high degree of collimation over a large angular extent. It is clearly bipolar, although near its origin red and blue shifted gas are spatially mixed. In both angular and physical extent this outflow source is among the largest ever studied.