About Tirthan Valley
Like most of the valleys in Himachal Pradesh, Tirthan is also named after the river which flows through it. One of the key tributary of Beas River, Tirthan River rises from the bitter-cold glacial lake of Hanskund peak (4800 meters) set in the interior of Great Himalayan National Park in the south-east of Kullu. River flows through a Vshaped valley and opens up fairly wide in its lower down as it approaches Beas. On Standard tourist maps, Tirthan valley stretches from Banjar to Bathad, dotted with number of villages (Sai Ropa, Nagini, Gushaini etc) on the river bank. The entire valley is verdant green with alpine grooves and deciduous forest.
Entrance of National park is the starting point for many treks in the interior of the park which is abundant with elusive flora and fauna. With its rich biodiversity, GHNP is a favorite among field researchers, botanists, wild-life enthusiasts. During summers when GHNP is open for tourists, trekking enthusiasts gear up for an arduous and breath-taking trail (Tirath Trek) till the source of Tirthan River. Besides serendipitously idyllic backdrop, Trout fishing, river side camping, village hopping, trekking, rappelling, river crossing etc are other indulgences which occupies its visitor for weeks in Tirthan Valley.