• Key Information

  • Flathead Lake

  • Type
    Lake
  • Depth
    370 ft
  • Length
    27.3 miles
  • Width
    15.5 miles
  • Learning Point
  • A moraine is the rock and debris that forms around glaciers as they push through the landscape. A lateral moraine is debris at the side, a terminal moraine is debris at the futhest point the glacier reaches, that is, in front of the glacier.
  • Flathead Lake is part of the left over from a lake, called Lake Missoula, that had formed behind an ice dam when the last glaciers formed in North America. When the dam forming these proglacial lakes, it can cause flooding and change the shape of the land around it rapidly.
  • Project
  • Draw a glacier and ice damming a lake. Show the glacier, the moraine and the lake.
  • Location
  • Located in
    Montana, United States
  • Fun Facts
  • It was once known as "Salish Lake", named after the nearby Salish Indians. These were sometimes called Flathead Indians, even though they didn't practice head flattening like the Chinook did.
  • Flathead Lake is the largest freshwater lake west of the Mississippi River.
  • The lake is one of the cleanest in North America, and among the cleanest lakes in the world for it's type.
  • In 2020, a brother from a nearby congregation was baptised in the lake.