Lake Abraham is an artificial lake and Alberta’s largest reservoir. It is located in the Kootenay Plains area of the Canadian Rockies front range, on the North Saskatchewan River in western Alberta, Canada.
The most fascinating thing about this lake is the frozen methane bubbles. Trapped methane gas is the reason for this phenomenon. This happens as a result of decaying plants on the lake bed. These plants release methane gas, creating bubbles that get trapped within the ice just below the surface of the freezing river.
The visual effect formed by this process appears to be like stacks of bubbles, frozen while rising toward the surface. The contrast between the bubbles and blue water gives this lake a scenic beauty.