Logan, city (1990 pop. 32,762), seat of Cache co., N Utah, on the Logan River; inc. 1859. It is the center of an irrigated dairy and farm area, with huge cheese plants, other food-processing facilities, and diverse manufactures. Logan was founded (1859) by Mormons, and a Latter-Day Saints tabernacle (Logan Temple) and Utah State Univ. are located there. Cache National Forest is nearby, and Logan Peak is visible from the city.