Rupin valley is nestled in between two approximately parallel run of giant lateral ribs a.k.a spur, stretching south from the high snow fields just below the main ridge of Dhaula Dhar range. Rupin pass is situated on this ridge beyond the snow field, where the ridge-altitude is as low as 4680 meters (15350 feet) thus allowing a crossing of the ridge without much risk. However during pre season, snow is found from an altitude of 2900-3000 meters (9500 feet) even when snowfall of previous year was less than average. In any case, during pre season you will have to climb at least 1700 meters (5600 feet) of snow slopes of varying gradient before reaching the pass, which offers a superb experience and learning for relatively less experienced trekkers.
Among all these sections of snow climbings, personally I loved crossing the frozen Rupin waterfall the most. Let us look at it in greater detail.
There is more than one ways to look at and discuss this colossal artwork of nature .
The climb and exploration, I would say, presents scopes of understanding the Himalayas in greater detail. After the last Ice Age, as the Earth has become warm enough, the last of the great glaciers have disappeared , except for the polar ones and the ones situated at the highest altitudes. Rupin waterfall presents the opportunity of finding out the deep creases and crevasses of its now-disappeared glacier. Ten to twenty thousand years ago the top of this waterfall was a glacier’s feeding zone, which fed the present stretch of the near-vertical waterfall (which was the accumulation zone of the glacier) with snow , ice and moraines. Today, the sprawling green meadows that we see after monsoon is result of that deposition of moraines which consists of rich alluvial soil and eroded stones full of minerals. The grandeur and charm of the lush Rupin valley and the mystic magic of the waterfall is the result of those distant past events.