  The Monoceros R2 region was first recognized as a chain of reflection nebulae
illuminated by A- and B-type stars. These nebulae are associated with a giant
molecular cloud that is one of the closest massive star forming regions to the
Sun. This chapter reviews the properties of the Mon R2 region, including the
namesake reflection nebulae, the large scale molecular cloud, global star
formation activity, and properties of prominent star forming regions in the
cloud.
