| The Barrier | |
|---|---|
 The rock fall area and the edge of The Barrier | |
| Official name | The Barrier |
| Location | British Columbia, Canada |
| Coordinates | 49°56′06″N 123°04′48″W / 49.9349°N 123.0800°W |
| Dam and spillways | |
| Type of dam | Lava dam |
| Impounds | Rubble Creek |
| Height | 243 m (800 ft) |
| Length | 2.4 km (1.5 mi) |
| Spillways | 1 |
| Spillway type | Uncontrolled |
| Reservoir | |
| Creates | Garibaldi Lake |
| Surface area | 9.94 km2 (3.84 sq mi) |
| Maximum water depth | 258.7 m (849 ft) |
| Normal elevation | 1,484 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.