Pyramid Mountain is set on the east side of Mamquam Lake in the southwest section of Garibaldi Provincial Park.

Topographic relief is significant as the summit rises 1,020 meters (3,346 feet) above Eanastick Meadows in 1.5 kilometer (0.9 mile).

Precipitation runoff from the peak drains to Skookum Creek, thence Mamquam River.

[5] Most weather fronts originate in the Pacific Ocean, and travel east toward the Coast Mountains where they are forced upward by the range (Orographic lift), causing them to drop their moisture in the form of rain or snowfall.

As a result, the Coast Mountains experience high precipitation, especially during the winter months in the form of snowfall.