Rob Roy Peak is located in the Southern Alps of the South Island.

It is also within Mount Aspiring National Park which is part of the Te Wahipounamu UNESCO World Heritage Site.

The nearest higher neighbour is Mount Aspiring / Tititea, seven kilometres to the north.

[6] Prevailing westerly winds blow moist air from the Tasman Sea onto the mountain, where the air is forced upwards by the mountains (orographic lift), causing moisture to drop in the form of rain and snow.

The months of December through February offer the most favourable weather for viewing or climbing this peak.