Lake Coeur d'Alene, officially Coeur d'Alene Lake ( /ˌkɔːr dəˈleɪn/ KOR də-LAYN), is a natural dam-controlled lake in North Idaho, located in the Pacific Northwest region of the United States. At its northern end is the city of Coeur d'Alene. It spans 25 miles (40 km) in length and ranges from 1 to 3 miles (5 km) wide with over 109 miles (175 km) of shoreline. The lake was named after the Coeur d'Alene people. From Wikipedia