Earth Science-Lost Lake.

Earth science 

Montana Earth Science Picture of the Week

                                        Lost Lake Found North of the Highwood Mountains

  to watch a 2-minute video: Scenes from Lost Lake.
Not that kind of lake . . .
Lost Lake, which is one of Montana's most unique bodies of water, can be found hidden below the surrounding prairie north of the Highwood Mountains, about 30 miles east-northeast of Great Falls. Although it is off the beaten path, and definitely not a destination for fishing or boating, Lost Lake's interesting geology makes it worth the trip. The rocks and 250-ft. cliffs tell of a fascinating past, including a time when an ancient sea covered the area, an episode of volcanic activity, and a more recent period when ice age floods shaped the landscape.