A cousin of Vittorio and Erminio Sella, Ugo Sella shared with them a passion for the mountains and photography. He had a laboratory in his house in Cossato. Numerous are the mountain landscapes, family portraits and photographs of his travels. Particularly important are those taken on the Carso during the First World War, where he served as a volunteer. In 1910 he received an award on the occasion of the International Competition promoted by Touring Club Italiano in collaboration with C.A.I (Italian Alpine Club) of Biella and dedicated to mountain photography in winter. Many of his photographs were published in the Touring Club magazines.