Photo credit: Karen Sachica Cepeda (Colombia) Review: Karen Sachica Cepeda and Abdel Rahman El Gamal (Founder of the website) Lake Tota with its 15,000-acre coverage is the largest lake in Colombia. The lake is located in the east of Boyacá department, inside the Province of Sugamuxi, and is the source of the Upia River which flows into the Orinoco River basin. Lake Tota …