Petrography and mineral compositions show that ALHA81005 is a lunar highland regolith breccia and is the first known lunar meteorite. Lithic clasts are abundant and most are members of the anorthosite-norite-troctolite highland suite. Plagioclase compositions in lithic clasts and single grains are calcic (An94-98). Pyroxene compositions, Al-Ti and MnO-FeO relationships support a lunar highland origin. A non-KREEPy source region is indicated, and the unexplored far side of the moon cannot be ruled out as a potential source.