The Eastern Karakoram is a remote and under studied region of Ladakh in the northwestern Himalaya. The geology of the area provides insight in to the evolution of the south Asian margin since the Paleozoic and is dominated structurally by the Karakoram fault, an similar to 800 km long dextral strike-slip fault that bounds western Tibet. In this paper, a 1:250,000 geological map is presented based upon fieldwork and interpretation of satellite imagery. An overview of the geology of the Eastern Karakoram is also presented and includes a discussion of the architecture and kinematics of the central segment of the Karakoram fault. The construction of the map has aided our understanding of the initiation and evolution of the Karakoram fault and of the geology of the south Asian margin in this region.