  We present a comprehensive database of kinematic, photometric and positional
information for 352 objects in the field of M87 (NGC 4486), the central giant
elliptical galaxy in the Virgo cluster; the majority of the objects are
globular clusters associated with that galaxy. New kinematic information comes
from multi-slit observations with the Multi-Object Spectrograph (MOS) of the
Canada-France-Hawaii Telescope, an investigation which has added 96 new
velocities to and confirmed many of the earlier values in a pre-existing
dataset of 256 velocities published elsewhere. The photometry, consisting of
magnitudes and colors in the Washington T1, C-T1 system, is based on CCD
observations made at CTIO and KPNO. The composite database represents the
largest compilation of pure Population II dynamical tracers yet identified in
any external galaxy; moreover, it extends to larger spatial scales than have
earlier investigations. The inclusion of photometric information allows
independent study of the distinct red and blue sub-populations of the bimodal
GCS of M87. In a companion paper (Cote et al. 2001), we use this dataset to
analyse the present dynamical state of the M87 globular cluster system, and
consider the question of its interaction and formation history.
