CLAMATO in context: this shows a Hubble Space Telescope ACS F814W mosaic (Koekemoer et al. 2007) of the central regions in the COSMOS field, with the footprint of the CLAMATO tomographic map indicated in blue (both the current paper and 2015 version, Lee et al. 2016). Also shown are the approximate footprints for other spectroscopic redshift surveys that probe similar redshifts, such as 3D-HST (Momcheva et al. 2016) and MOSDEF (Kriek et al. 2015) in red, zCOSMOS-Deep (Lilly et al. 2007) in brown, VUDS (Le Fèvre et al. 2015) in orange, and ZFIRE (Nanayakkara et al. 2016) in green. The overall ACS footprint used for the Capak et al. (2007) base i-band catalog is larger than the field shown here.