Ultra-high energy neutrinos can give us a unique view into high energy physics processes in our universe. The Beamforming Elevated Array for Cosmic Neutrinos (BEACON) aims to detect tau neutrinos with energies more than 100 PeV. BEACON is optimized to search for the radio signature induced by the decays of tau leptons in the 30-80 MHz range. I will discuss an ongoing study aimed at reconstructing the Xmax with BEACON and direction using interferometric techniques.