Mount Longdon and the surrounding area primarily consists of sedimentary rocks with formations of sandstones, quartzites, and shales, which date back to the Paleozoic era.

Mount Longdon has a maritime climate in the polar, tundra zones, Köppen classification ET.

Mount Longdon's elevation, maritime location and topography frequently lead to cool conditions.

A mixture of hand-to-hand fighting and ranged combat resulted in the British occupying this key position around the Argentine garrison at Port Stanley.

[citation needed] At the summit of the hill now lies a memorial which today attracts some tourism to the area.