Status of 21cm Intensity Mapping with CHIME

Intensity mapping of redshifted 21cm emission from neutral hydrogen holds great promise for learning about cosmology, as it provides an efficient way to map large volumes of the universe without the need to characterize individual luminous sources. The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a cylinder telescope located in Western Canada that was custom-built for this purpose, and that has collected several years worth of data since it reached full observational capacity in late 2018. I will present a status update on recently-completed and ongoing cosmological analyses of CHIME data, including cross-correlations with galaxy/quasar catalogs from the extended Baryon Oscillation Spectroscopic Survey (eBOSS), cross-correlations with Lyman-alpha forest measurements from eBOSS, and progress toward a measurement of the auto power spectrum of the cosmological 21cm signal between redshifts 0.8 and 2.5.