Kaimaktsalan, Mountain summit on the border between Greece and North Macedonia

Kaimaktsalan is the highest summit of the Nidže range, rising to 2,521 metres on the border between Greece and North Macedonia. The frontier crosses the summit itself, which is made of granite, gneiss and mica. Its prominence is 1,758 metres, making it the third-highest peak in Greece and the fifth-highest in North Macedonia.

A major World War I battle took place here in September 1916 when Serbian forces defeated Bulgarian troops. This victory gave the Serbs control over a strategically important mountain position.

On the Greek side near the summit stands a small church dedicated to Saint Peter, while the peak itself is also called Profitis Ilias. South of the memorial chapel is a ossuary of Serbian soldiers, consecrated on 12 July 1935, holding remains of fighters who fell in 1916.

The border runs across the summit, so the peak is reached from the Greek side near the Saint Peter church or from the Macedonian side via Nidže. The climate is subarctic, with short, cool summers and long, cold winters; snow can persist late into the season. There are no marked trails or facilities at the top, so carry water and maps and check conditions before setting out.

The name comes from Ottoman Turkish, where it refers to clotted cream, likely describing the snow-covered peak. This linguistic detail reveals how historical trade routes and cultural influences shaped the region's geographical names.