A biologically-inspired VLSI bat echolocalization system is presented. An artificial bat head was designed and fabricated using a 3D printer, an ultrasonic cochlea with 16 channels and 128 spiking neurons was designed and fabricated. Two VLSI chips were designed to extract localization features from the cochlear spikes: a binaural interaural level difference (ILD) chip (with 32 neurons) and a monaural spectral difference chip (with 240 neurons). We demonstrate that the output of the feature extraction chips can be decoded to estimate the elevation and azimuth of ultrasonic chirps. All chips were fabricated in a commercially-available 0.5 µm CMOS process.