  MONOLITH is a proposed massive magnetized tracking calorimeter at the Gran
Sasso laboratory in Italy, optimized for the detection of atmospheric muon
neutrinos. The main goal is to test the neutrino oscillation hypothesis through
an explicit observation of the full first oscillation swing. The sensitivity
range for this measurement comfortably covers the entire Super-Kamiokande
allowed region. Other measurements include studies of matter effects, the NC/CC
and neutrino/anti-neutrino ratio with atmospheric neutrinos and auxiliary
measurements from the CERN to Gran Sasso neutrino beam. Depending on approval,
data taking with part of the detector could start in 2005. The MONOLITH
detector and its performance are described.
