Origin of Pokhara

The development of Pokhara valley and the origin of Annapurna range including the majestic peak Macchapuchhre is ascribed to Geological faulting in the 'Tertiary Period! (between 65‑25 million years ago from now). The convergence of Indian peninsula with Tibetan plate resulted into upsurge of Himalayas from the Tethys sea. After the upsurge of Annapurna range, due to the action of climatic components, glaciers started eroding mountains. The eroded materials ‑ limestone, gneiss and quartzite ‑were transported downwards depositing larger and coarser debris first and smaller as well as smoother debris later. Therefore the northern region of Pokhara has thicker layer of coarser and larger boulders but this thickness decreases southward and smoothness and size reduction occurs gradually. In this way, the tectonic valley was developed due to the hauling of debris as moraine and subsequent deposition as lake deposit.