Bidzar, Archaeological site near Guider, Cameroon

Bidzar is a petroglyph site beside Bidzar village on the Maroua–Garoua road toward Guider, in Cameroon's Mayo-Louti department. Around 500 figures are cut into cipolin, a calcareous marble crossed by chlorite-schist veins, on slabs scattered over roughly 2.5 km north to south and 1 km east to west. Most are groups of circles, some isolated, some clustered.

A French researcher discovered the engravings on this marble plateau in 1933 during an expedition to the region. Since then, several scholars have studied the site to learn more about the origins and meaning of these ancient stone marks.

The roughly 500 figures are mostly groups of circles, some isolated and some clustered, engraved with a hammer and an engraving tool. Researchers have suggested the circles may encode concepts or stories from myths, or set out a cosmogony. Bidzar holds the largest concentration of rock-art figures in Cameroon.

The site is located away from major cities and can be reached by road that connects Maroua and Garoua. When visiting, bring sturdy shoes and allow enough time to explore the area, as the engravings are spread across a large territory.

The marble is a calcareous type called cipolin, crossed by chlorite-schist veins, and it breaks easily under a granite or quartz hammer. This low resistance to friction explains why the engravers chose these slabs over the neighbouring granites. The site holds around 500 figures, the largest concentration of rock art in Cameroon.