  We present the first results of our application of photometric redshifts to
the study of galaxy populations in high-redshift clusters. For this survey, we
are examining a sample of galaxy clusters at z > 0.6 which have already been
well-studied in the optical and infrared wavelengths (Oke, Postman & Lubin
1998). Our main goal is to use photometric redshifts to delineate accurately
between field and cluster galaxies. Once we isolate the cluster galaxies, we
can directly study the properties of the galaxy population in each
high-redshift cluster. Specifically, we are studying the cluster morphological
fractions, the morphology-density relation, and the large scale structure
distribution. Although we have encountered some operational problems with our
photometric redshift technique, early results suggest that this procedure will
become a significant tool for studying high-redshift clusters.
