Which one of the two landmarks between which Rocky Mountain Trench stretches that is a large natural freshwater lake west of the Mississippi River?
Rocky Mountain Trench The Rocky Mountain Trench, also known as The Valley of a Thousand Peaks or simply the Trench, is a large valley in the northern part of the Rocky Mountains. It is both visually and cartographically a striking physiographic feature extending approximately 1600 km from Flathead Lake, Montana to the Liard River, just south of the British Columbia-Yukon border near Watson Lake, Yukon. The trench bottom is 3-16 km (2–10 miles) wide and ranges from 600-900 metres (2,000–3,000 feet) above sea level. The general orientation of the Trench is an almost uniform 150/330 degree geographic north vector and has become convenient for north/south aviators.
Lake Havasu Lake Havasu is a large reservoir behind Parker Dam on the Colorado River, on the border between California and Arizona. Lake Havasu City sits on the lake's eastern shore. The reservoir has an available capacity of 619400 acre.ft . The concrete arch dam was built by the United States Bureau of Reclamation between 1934 and 1938. The lake's primary purpose is to store water for pumping into two aqueducts. Prior to the dam construction, the area was home to the Mohave Indians. The lake was named (in 1939) after the Mojave word for "blue". In the early 19th century, it was frequented by beaver trappers. Spaniards also began to mine the areas along the river.