Tags: Mountain Range.
The Sierra de Lema is a mountainous upland area of Bolívar state Venezuela. Lying north of the Gran Sabana it marks the divide between the drainage basins of the Caroní and Cuyuni Rivers. It is partly within the bounds of Canaima National Park and encompasses a number of prominent tepuis including the entire Los Testigos chain and Ptari Massif. The elevational range of the Sierra de Lema is around 150–1650 metres (490–5410 ft) above sea level.