Rempart Mountain is the fourth-highest peak in Mauritius, after Le Pouce.

The middle peak, Montagne Kasé, is slightly taller than the Trois Mamelles (Three Breasts), which stand at around 600 metres (2,000 ft).

The easternmost peak, the original Rempart, is the shortest at 545 metres (1,788 ft).

[3][full citation needed] The mountain itself is composed of weathered rock.

While a climbing ladder that once existed has been removed, the mountain remains on private property.