The location of Sinharaja rain Forest is between 6 D 21 M and 6 D 27 M , North and 80 D 25 M and 80 D 34 M, East. Gin Ganga and Kalu Ganga Rivers Gin and Kalu gets its water flow from this forest land. The highest elevated mountain peak found at Sinharaja is 1170 Mts and has eight peaks over 600 Mts.