Ntchisi Mountain's peak reaches 1702 meters elevation.

[1] Ntchisi lies on the western edge of the East African Rift, and Ntchisi is part of a north-south belt of hills, mountains, and escarpments that form the western boundary of the rift.

Ntchisi Mountain Forest Reserve was established in 1924, and covers an area of 97.12 km2.

The dominant canopy tree is Aningeria sp., with a smaller area (30ha) of tall Newtonia buchananii rainforest on the southeastern slope.

Ntchisi Mountain is the southern limit of the range for the songbird Sharpe's greenbul (Phyllastrephus alfredi), and two species of butterfly, Charaxes ameliae and Hypolycaena hatita.