Dehradun, Nov. 3 -- A group of seven trekkers and a guide who went missing after an avalanche on the Kedar Tal trek route on October 29 remained untraced on Monday, despite extensive search operations which recovered tents and bags near Kedar Kharak, the trail's second major campsite on its 4,000 metre-point. The missing trekkers include five men from West Bengal and two women from Uttar Pradesh and a guide from Uttarkashi. SDRF commandant Arpan Yaduvanshi said "six personnel from the high-altitude rescue unit, four people from the Nehru Institute of Mountaineering were heli-dropped at Kedar Kharak. Another team reached the site on foot." He added that heavy snowfall amounting to "whiteout" conditions hampered the search. "There is around 5 to 6 feet of snow in the area. However, we are trying our best to trace them. We have halted the operation for the day due to bad weather. The teams are currently camping at Kedar Kharak and will resume the search as soon as the weather improves," added Yaduvanshi. District Emergency Operation Centre said the missing trekkers' family members have been informed....