The fort's unique 'chimney' style architecture features a hollow, internal staircase carved into the rock to reach the top.
Kothaligad was historically used by the Maratha empire as a storehouse for arms and ammunition.
The base of the fort contains a cave carved into the rock which is large enough to accommodate a small group of visitors.
The surrounding landscape is part of the Bhimashankar Wildlife Sanctuary transition zone.
Geologically, the fort is a remnant of a volcanic plug, which explains its distinct conical shape compared to neighboring flat-topped mesas.
Kothaligad, also known as Peth Fort, is a small, conical-shaped fortress situated in the Karjat region of the Western Ghats. It consists of two levels: a base plateau and a smaller, upper pinnacle accessible through a carved rock-cut staircase. The site served historically as a strategic watchtower rather than a residential fort, offering views of the surrounding Sahyadri mountain range. The summit features a flat platform and a water cistern carved directly into the basalt rock. The ascent involves navigating a spiral staircase carved inside the chimney of the pinnacle. Access requires trekking through Peth village, which serves as the base for the climb. The fort's defensive architecture includes caves at the base and remnants of storage structures.
The view from the top of the internal chimney staircase looking back toward the surrounding Sahyadri peaks.
Wear trekking shoes with high-traction soles as the rock-cut steps become extremely slippery during and after rain.
Carry at least two liters of water per person, as there are no shops or vendors on the upper reaches of the climb.
Avoid carrying excessive weight in your backpack, as the narrow, steep staircase requires agility and balance.
Do not attempt the final climb during heavy monsoon rain, as the rock-cut steps become dangerous waterfalls.
The trail becomes restricted or hazardous during peak monsoon alerts issued by local authorities.
Carry all trash back down the trail; do not deface the historic rock-cut carvings.