Johnston Canyon Water Flow

The water flow at Johnston Canyon is primarily driven by Johnston Creek, a tributary of the Bow River. The flow of water in the creek varies throughout the year, influenced by snowmelt, rainfall, and seasonal changes.

Seasonal Johnston Canyon Water Flow

Johnston Canyon's Spring and Summer (Peak Flow)
Water Source: Melting snow from the Sawback Range significantly increases water flow in Johnston Creek.
Waterfalls: The Lower Falls and Upper Falls are at their most powerful during late spring and early summer, with dramatic cascades.
Rainfall: Summer rainstorms can also temporarily increase the creek's flow.
Experience: The rushing water creates a thunderous sound and misty ambiance, enhancing the canyon’s dramatic appeal.

Fall

Johnston Canyon's Water Flow Reduces: As snowmelt decreases and rainfall is less frequent, the water flow in Johnston Creek diminishes slightly but remains steady.
Experience: The reduced flow allows for clearer views of the creek bed and the waterfalls.

Johnston Canyon's's Winter Water Flow (Low Flow)

Freezing: Much of the creek and its waterfalls freeze, forming spectacular ice sculptures.
Under the Ice: Water continues to flow beneath the frozen surfaces, visible in some spots through cracks or thinner ice layers.
Experience: The icy stillness contrasts with the flowing water you can hear beneath the ice.

Hydrology

Fed By: Johnston Creek originates in the Sawback Range and is fed by Snowmelt from surrounding peaks.
Rainwater from precipitation events.
Springs that maintain flow during drier months.
Contribution to Bow River: After passing through Johnston Canyon, Johnston Creek joins the Bow River near Castle Junction, adding to its flow.

Water Flow Rate

The water flow rate is not measured daily, but it varies greatly between seasons:
Spring/Summer: Higher flow rates due to snowmelt.
Fall/Winter: Lower flow rates with water partially freezing in winter.

Water Flow Impact on Hiking Johnston Canyon

High Flow (Spring/Summer):
The waterfalls are most impressive.
Trail sections close to the water can feel misty or humid.
Streams can appear louder and more dynamic.
Low Flow (Winter): Frozen waterfalls and quieter conditions.
Enhanced safety measures, such as ice cleats, are recommended. Johnston Canyon Home