  We present high angular resolution (~ 1''), sensitive CO(2-1) line
observations of the region OMC1 South in the Orion Nebula made using the
Submillimeter Array (SMA). We detect the CO(2-1) high velocity outflow that was
first found by Rodriguez-Franco et al. (1999a) with the IRAM 30 m. Our
observations resolve the outflow, whose velocity-integrated emission has a
deconvolved width of 0.89'' \pm 0.06'' (490 AU) and a projected length of ~
48'' (21,000 AU) with very high redshifted and blueshifted gas with velocities
of about \pm 80 km/s. This outflow is among the most collimated (~ 3 degrees)
and youngest outflows (600 yr) that have been reported. The data show that this
collimated outflow has been blowing in the same direction during the last 600
yr. At high velocities, the CO(2-1) outflow traces an extremely collimated jet,
while at lower velocities the CO emission traces an envelope possibly produced
by entrainment of ambient gas. Furthermore, we also detect for the first time a
millimeter wavelength continuum source possibly associated with a class I
protostar that we suggest could be the possible exciting source for this
collimated outflow. However, the bolometric luminosity of this source appears
to be far too low to account for the powerful molecular outflow.
