1. A terminal, or end, moraine consists of a ridgelike accumulation of glacial debris pushed forward by the leading glacial snout and dumped at the outermost edge of any given ice advance. It curves convexly down the valley and may extend up the sides as lateral moraines. It may appear as a belt of hilly ground with knobs and kettles
https://www.britannica.com/science/moraine#ref201845
2. A terminal moraine, also called end moraine, is a type of moraine that forms at the snout (edge) of a glacier, marking its maximum advance. At this point, debris that has accumulated by plucking and abrasion, and has been pushed by the front edge of the ice, is driven no further and instead is dumped in a heap. Because the glacier acts very much like a conveyor belt, the longer it stays in one place, the greater the amount of material that will be deposited. The moraine is left as the marking point of the terminal extent of the ice
https://en.wikipedia.org/wiki/Terminal_moraine
By NASA / Michael Studinger - http://www.nasa.gov/mission_pages/icebridge/index.html, Public Domain, https://commons.wikimedia.org/w/index.php?curid=25771128