Østensjøvannet naturreservat has 1 named peak. The highest is Tallberget at 146 m.
There are 1 named mountains in Østensjøvannet naturreservat. The highest and the most prominent mountain is Tallberget.
The highest peak in Østensjøvannet naturreservat is Tallberget, at 146 m.
Notable peaks in Østensjøvannet naturreservat include Tallberget.
