HAWC is a second generation water Cherenkov detector array that observes TeV gamma rays via secondary particle interactions in water. It is currently under construction in Sierra Negra, Mexico and a partial array will start operation this Fall. Like its predecessor, Milagro, it is an all-sky surveying instrument with greater than 90% duty cycle. Milagro has detected several extended TeV gamma-ray sources, such as Geminga, MGRO J2019+37, and MGRO J2031+41. Many of these have also been detected at lower energies with multiple source associations. The morphologies and spectral analyses of these complex regions using Milagro data will be presented, along with estimations of the HAWC sensitivity to these extended objects.