Astroparticle Physics with the L3+C Detector

The L3+C detector, which was located at the CERN electron-positron collider, LEP, has been used to collect a total of 12 . 10(9) cosmic ray triggers during the years 1999 and 2000. Thanks to the unique properties of this detector, research topics relevant to various current problems in cosmic ray muon and astroparticle physics can be studied. The status of the data analysis on different subjects is presented.