GUWAHATI, Aug 1: A four-day trekking camp , organized by the Ujani Asom Mountaineering and Trekking Association, concluded recently at Borsil near Assam-galand border at Sivasagar district. Sarat Henchow, the assistant secretary of the Ujani Asom Mountaineering and Trekking Association said that around 50 participants from the adjoin areas took part in this trekking camp.