In collaboration with the Indonesian Agency for Surveying and Mapping, researchers from Scripps Institution of Oceanography and Rensselaer Polytech Institute made yearly measurements at six sites across the Australia-Pacific plate boundary in Irian Jaya, Indonesia. Irian Jaya is located in the western half of New Guinea. Convergence is thought to be accommodated by a combination of strike slip motion (Sorong-Yapen fault) and thrusting (Highlands and Mamberambo thrust belts) Puntodewo et al.[1994]. Seismicity in the region suggests a wide plate boundary spanning 400-500 km. GPS observations over a period of two years show that oblique convergence is being accommodated in two distinct fashions. As expected, the Highlands and Mamberambo thrust belts accommodate a significant portion of the deformation. GPS measurements of shortening, 25 mm/yr, are similar to that derived from summing moments of earthquakes beneath the Mamberambo Basin and the Highlands, 22 mm/yr. The shear component of deformation does not appear to be located on the Sorong fault, but instead may be associated with the Yapen fault. Given the variation of deformation styles, measurements spanning larger portions of Irian Jaya will be required to accurately model fault slip in the province.