Between the two peaks and slightly to the north, at an elevation of 2,418 feet (737 m), is Loon Pond.

Each of the three peaks is the summit of one or more chairlifts belonging to the ski resort.

[4] Loon Mountain is at the western end of Scar Ridge, which runs southeast to Mount Osceola and has numerous summits, the highest of which is 3,774 feet (1,150 m) above sea level.

To the west of the South Peak, Horner Brook drains directly to the Pemigewasset River.

The southern slopes of Loon Mountain drain via Talford Brook to Eastman Brook and then into the Pemigewasset, which flows south to the Merrimack River and ultimately the Gulf of Maine.