The main goal of MINOS is to conduct a two-detector, high-statistics, long-baseline study of neutrino oscillations. MINOS commenced its operations and registers neutrino interactions in its two magnetized toroidal tracking calorimeters, a 1 kton detector at Fermilab and a 5.4 kton detector in the Soudan Mine 735 km away. The experiment uses neutrinos produced by a well-controlled NuMI beam from Main Injector at Fermilab to cover a range of the ``atmospheric'' delta m2.
The MINOS ``Observatory'' of cosmic ray interactions is live for more than 98% of the time and detects interactions of cosmic ray
muons and neutrinos. We will discuss the first experience with
running MINOS and NuMI and present preliminary cosmic ray results.