Jason Kalirai (UCO/Lick Observatory) August 1st at 2pm, in CFHT conference room. The CFHT Open Star Cluster Survey: Constraining Stellar Evolution The Canada-France-Hawaii Telescope (CFHT) Open Star Cluster Survey is a large BV imaging data set of 25 such clusters in the Milky Way. The primary goal of the survey is to develop a catalogue of several hundred white dwarfs in these clusters and constrain the initial-final mass relationship. However, given the amazing quality of the data, we have expanded the scope of our study to answer many other interesting questions about the clusters: determination of foreground reddening and distance, measurements of the cluster radial density distributions, analysis of the cluster luminosity and mass functions for dynamical effects and mass-segregation, measurements of the total cluster populations, and comparisons of the observational CMDs with up-to-date theoretical stellar models and numerical simulations to determine the ages of the clusters and identify regions of theory-observation discrepency. In this talk, I will present new results based on observations of the richest star clusters in our Survey: NGC 6819, NGC 2099, NGC 2168, NGC 2323, NGC 7789, and NGC 6791. By combining the wide-field, deep CFHT photometry for these clusters with 8-meter and 10-meter spectroscopic studies at Gemini and Keck, we have been able to put strong contraints on key phases of stellar evolution.