Trient is a municipality in the district of Martigny in the canton of Valais in Switzerland. In 1900 the municipality was created, when it separated …Trient is a municipality in the district of Martigny in the canton of Valais in Switzerland. In 1900 the municipality was created, when it separated from Martigny-Combe. Trient has an area, as of 2011, of 39.5 square kilometers. Of this area, 12.4% is used for agricultural purposes, while 31.2% is forested. Of the rest of the land, 0.8% is settled and 55.6% is unproductive land.