High altitude mountains and glacial lakes. A glacial lake is a lakes with origins in a melted glacier. They are formed when a glacier erodes the land, and then melts, filling the hole or space that it has created. A retreating glacier often left behind large deposits of ice in hollows between drumlins or hills. As the ice age ended, these melted to create lakes. These lakes are often surrounded by drumlins, along with other evidence of the glacier such as moraines, eskers and erosional features such as striations and chatter marks. Aerial fly flying highland alpine meadow continental climate. UHD 4K 3840×2160.