Yucamane is a mountain whose height is variously given as , or . It is a high compound volcano, with an about wide summit crater; this depression in turn has a smaller crater with a diameter of nested within. The summit crater has a young appearance, and due to the youth of the volcano there is little trace of glaciation. Yucamane has a conical shape and is formed primarily by lava flows with some block and ash flows and pyroclastic flows. Lava flows are thick and often show characteristic flow ridges. They are especially prevalent on the upper western and upper southern flanks of the volcano, while the eastern flank has a higher proportion of pyroclastic flows, as does the far southern flank. Based on slope angle, a Yucamane I volcano, which forms the lower part of the volcano and has a more gentle slope, has been distinguished from a Yucamane II, which sits atop Yucamane I and has steeper slopes. On the southeastern flank a secondary volcanic centre, high Mal Paso, can be found. This cone is wide and has a partially destroyed crater.