  We present sensitive radio continuum images at high resolution of 37 radio
galaxies at z > 2. The observations were made with the Very Large Array (VLA)
at 4.7 GHz and 8.2 GHz, with typical resolutions of 0.45'' and 0.25'',
respectively. Images of total and polarized intensity, and spectral index, are
presented. Values for total and polarized intensity, and values of rotation
measures, are tabulated for the hot spots in each source. The positions of the
radio nuclei are tabulated, along with a variety of other source parameters.
Analysis of the polarization data reveals large rotation measures (RMs) towards
six sources. We argue that the RMs are due to magnetized, ionized gas local to
the radio sources. The magnitude of the RMs are in excess of 1000 rad/m/m (rest
frame) for these sources. Drawing an analogy to a class of lower redshift radio
galaxies with extreme RMs, we speculate that these sources may be at the
centers of dense, X-ray emitting cluster atmospheres.
