The Barrier

The Barrier
The rock fall area and the edge of The Barrier
Official nameThe Barrier
LocationBritish Columbia, Canada
Coordinates49°56′06″N 123°04′48″W / 49.9349°N 123.0800°W / 49.9349; -123.0800
Dam and spillways
Type of damLava dam
ImpoundsRubble Creek
Height243 m (800 ft)
Length2.4 km (1.5 mi)
Spillways1
Spillway typeUncontrolled
Reservoir
CreatesGaribaldi Lake
Surface area9.94 km2 (3.84 sq mi)
Maximum water depth258.7 m (849 ft)
Normal elevation1,484 m (4,869 ft)

The Barrier is a lava dam retaining the Garibaldi Lake system in southwestern British Columbia, Canada. It is over 300 m (980 ft) thick and about 2.4 km (1.5 mi) long where it impounds the lake.[1]

The area below and adjacent to The Barrier is considered hazardous due to the unstable lava formation.