We have determined the directions of arrival of auroral kilometric radiation during three separate intervals using data from the DE 1 plasma wave instrument. In this case of the dominant extraordinary mode component, these directions were consistent with generation at the local electron cyclotron frequency on nightside auroral field lines. The ordinary mode component appeared to have a similar source in our case, but in order cases came from different directions. These other cases were consistent with reflection at the plasmopause and the wall of the auroral plasma cavity.