The Otta River flows through the valley. The Otta River begins in the municipality of Skjåk and flows into lake Vågåvatnet. Exiting Vågåvatnet at Vågåmo, it continues its journey through the valley, leaving the municipality of Vågå to meet the Gudbrandsdalslågen river at the town of Otta in the municipality of Sel.[4]
Reinheimen National Park, which consists of much of the Tafjordfjella mountain range, includes the reindeer habitat in the northern part of the Ottadalen valley.[5]
^Peppoloni, Silvia; Di Capua, G. (2015). Geoethics: the Role and Responsibility of Geoscientists. London: The Geological Society. p. 8.
^Doré, A. (2002). Exhumation of the North Atlantic Margin: Timing, Mechanisms and Implications for Petroleum Exploration. London: The Geological Society. p. 105.
