The High Altitude Water Cherenkov (HAWC) Observatory, under construction at Sierra Negra, Mexico will detect energetic air showers from primary hadrons and gamma rays with energies from 100 GeV to 100 TeV. The first stage of the instrument, HAWC-30, with 10% of the channels deployed has been completed and is performing as expected. We anticipate HAWC-100 will be operational by summer 2013 with the full HAWC Observatory (with 300 detectors) being completed in 2014. HAWC complements existing Imaging Atmospheric Cherenkov Telescopes and the space-based gamma-ray telescopes with its extreme high-energy reach and its large field-of-view (∼2sr). The full HAWC instrument will be used to study particle acceleration in Pulsar Wind Nebulae, Supernova Remnants, Active Galactic Nuclei and Gamma-ray Bursts.