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Avalanche Atlas

Harper Creek

Access to this area is from the Waimakariri River. Harper Creek is a very narrow stream canyon, with 300-600 metre rock walls rising on its northern flank to Camp spur on Mt Harper. All avalanche activity in this area tends to be of an airbourne wet snow nature, therefore their avoidance is highly dependant on your knowledge of snow conditions at higher level. Avalanches impacting the valley floor tend to move downstream, and the lower avalanche paths can travel up to 500 metres. Extreme avalanche behaviour is possible from May to November each year.

Notes
  • A major avalanche path exists off the south eastern flank of Mt Harper, it has the potential to travel through the Harper basins and over the waterfall (70m) at the head of Harper Creek. Several other avalanche paths also combine at this point.
  • There is evidence of avalanche (wet sluff rooster tails) behaviour in the scree gut which gives climbing access to the ridgeline separating Harper & Greenlaw Creeks. This gut leads off near the base of the waterfall on the true-right.
Harper Creek

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