The Flatiron is the name for an eroded volcanic outcrop in east-central British Columbia, Canada, located in Wells Gray Provincial Park.

The surface of the lake was the rim of the Hemp cliffs a few kilometres south of The Flatiron.

The lake was created by a blockage downstream on the Clearwater River, but its actual location is unknown, and this could have been an ice dam, a landslide or a lava flow.

The lava that is exposed today cooled very slowly and formed into columns, one of the park’s finest examples of columnar basalt.

As the cliffs almost surround the Flatiron, the only access to the top is a scramble from the west side above Hemp Creek.