  Although field galaxy studies have begun to probe the universe at z > 1,
evidence for galaxy clusters at such redshifts has been sparse. New
observations are accumulating rapidly, however, providing new data on the early
evolution of elliptical galaxies, the blue ``Butcher-Oemler'' population, and
of large scale structure at unprecedentedly large lookback times. I briefly
review some of these new observations, discussing morphological and spectral
characteristics of cluster galaxies at z > 1, x--ray evidence for massive,
collapsed clusters out to z = 1.8, and tantalizing indications from the
literature for clusters at 2 < z < 5.
