What are Moraines?

Moraines are long ridges of deposits of glacial till.
    
When these deposits are at the end of a glacier, they are called as Terminal moraines and when they are deposited on both sides, they are called as Lateral moraines.
    
When lateral moraines of two glaciers join together, they form Medial moraines.
    
When the lateral moraines of both sides of a glacier join together, it forms a horse-shoe shape.
    
Ground moraines are deposits left behind in areas once covered by glaciers.