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Abstract

This paper deals with petrological studies of the area around Rudraprayag-Tilwara in Garhwal Himalaya, Uttarakhand. The area under the present study covers approximately 100 sq. Kms. lies between, Latitude 30°17'N to 30°24'N and 78°51'E to 79°10'13” .The water divide between the Alaknanda and the Mandani rivers, forms the boundary of the area from Rudraprayag to near Mayali in the west and from Rudraprayag to near Rampur in the east. Mayali marks the north western limit and Rar Village the north north western limit of the studied area. From Rar boundary follow the waer divide of the Laster Gad to around Jakhnoli Village, from where it swings towards Rampur. The entire area falls falls in the catchments of the lower Mandakni River. Rudraprayag is aproximately 380 Kilometers northeast of New Delhi. It is connected to Rishikesh by (U.K.) State Highway NH-58. Rishikesh is the nearest railhead. The other railhead is at Kotdwar. Rudraprayag Lies on the ancient Pilgrims route to Badrinath and Kedarnath. From Rudraprayag there is a bifurcation for Kedanath and Badrinath. Tilwara may be approached either from Rudraprayag or from Tehri via Ghansali. There is a Helipad at Gauchar, which is 24 kms east of Rudraprayag. The Nearest aerodrome is at Jolygrant near Deheradun. The Two Famous temples of Mathayana khal and Rudraprayag (Rudranath) situated in the studied area, attract thousands of pilgrims each year.