Distributed vertical line array (DVLA) measurements of a controlled towed source were made as part of the Office of Naval Research Philippine Sea 2009 experiment (PhilSea09). The vertical line array consisted of two 1000 m sections, one spanning the sound channel axis (∼1000 m) and the other spanning the surface conjugate depth (∼5000 m). The source transmitted a combination of narrowband tones and LFM signals ranging between 20 and 450 Hz was towed at ranges from 3 to over 100 km from the DVLA. In this paper, matched field localization methods, developed in the 1990s are applied to the pair of DVLA receivers. A comparison of the detection and localization skill of each array is made as a function of source range and source receiver. Deep-water propagation for shallow sources is dominated by convergence zone propagation and, therefore, the axial and deep receivers will be illuminated by the source at different times. Narrowband and broadband geo-acoustic inversion results will be presented. Seafloor roughness is shown to be a significant feature of the bottom bounce paths and a beam-based matched field processing technique is applied to mitigate for the spreading of bottom interacting ray-paths.