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Rainbow Mountain via Beverley Creek #7807 by Paul Kubik

Dataset Used: 300M
  Subject Mountain: Rainbow Mountain
Ranges: North America Ranges / Pacific Cordillera Range / Coast Mountains / Pacific Ranges
  Park: Whistler Olympic Park - Garibaldi Provincial Park

Closest Town: (11 km NW of Whistler).
Trip Date: January 12, 2013   (1 days) Calculated Length: 11 km     Elevation Gain: 1514m
Abstract: A glorious ski trip almost to summit of Rainbow, with lots of alpine skiing. Report has good description of how to get from the free overnight parking lot to the Beverley trailhead.
Difficulty: 2:
Participants: Max Aleksandrov, Nicolas Jiminez, Paul Kubik, Craig Speirs

Access: From Squamish, drive up Highway 99 and then turn left onto the new Callaghan Valley road, and drive almost to the end (+9.3 km) and park in Alexander Falls parking lot.  
Access Level: 1 = Any Car  

First off, I want to thank and draw attention to the efforts of Scott Nelson and others in the BCMC and VOC who had the vision to create the winter route up Beverley Creek. Scott was instrumental in defining and protecting backcountry access corridors through the commercial recreation tenures in the upper Callaghan Valley. He stuck with it over several years to gain concessions with the government and permit holders that benefit all backcountry recreationists.

Four of us got an early start to the day that saw us at the free public parking area at Alexander Falls in the upper Callaghan Valley just before 8 AM. The car thermometer was reading 8F. Our destination for the day was Beverley Creek winter route and the approach to Rainbow Mountain that branches off from the creek. Since we were early, there was no one on the ski trails so we just skinned up from the water treatment plant to the trailhead. The Trailhead is reached from the Norwegian Woods trail about 100 metres after the bridge over Beverley Creek. Trail markers show the start of the route.

The first part of the trail is through moderate forest and the warm temperature spike earlier in the week made for lots of ice and tree bombs with little fresh powder. Conditions improved as the trees thinned about 30 minutes off the XC ski trail. The route crosses Key Lake just before the junction of the Beverley Creek winter route with the Hanging Lake summer trail from Madeley Creek road. We crossed a low wooded ridge and descended gently to Beverley Creek, following the marked route.

The route follows the broad bed of Beverley Creek, which was amply bridged by the 3 metre plus snowpack. After a couple of kilometres we took the major side valley leading up the west side of Rainbow Mountain. It was a pleasant ascent up the northwest-facing valley. The so-called Puma S1 dominated the western view.
Waterfall area in the side valley off Beverley Creek

Above the waterfall

By noon we were cresting the pass at the valley head into the welcome sunshine. We had good views to the south of snowmobile heaven at Rainbow and Hanging Lakes. Some heli-ski tracks descended the standard route but other than that, we had the mountain to ourselves.
Appoaching the pass at the valley head. Puma S1 in the background.

In the Pass at 1600m

Above 1800 metres the snow quality deteriorated greatly. It was wind-hammered sastrugi. In my own ski mountaineering set up it was difficult to hold an edge. We gained the 2000 metre level shortly after 1 PM and decided to call it a day. It left us 300 metres short of the summit but the snow quality was so objectionable I don't think there were any regrets. We beat our retreat in quick time allowing us all the more leisure to pick some clean lines and snap some skiing shots.
Skiing down at about 2000m, with summit in back

GPX file   KML file

Labelled Waypoints
Lat-Long Km Description
  50.1328, -123.12740.0Alexander Falls Parking Lot 800m (2625')
  50.1362, -123.12740.4Leave highway just before hairpin
  50.1387, -123.12650.7Just south of Filtration plant
  50.1403, -123.12151.1Jct with Madeley Loop route
  50.1485, -123.11842.0Ski past connector from Biathlon parking area
  50.1512, -123.11762.4Cross Maple Leaf bridge over Beverley creek
  50.1513, -123.11812.4Turn right off Madeley loop onto beverley trail
  50.1638, -123.11343.9South end of Key Lake
  50.1652, -123.11244.1North End of Key Lake
  50.1759, -123.08197.5Treeline
  50.1713, -123.07608.1Point where up route diverges from down route
  50.1719, -123.05749.8High point reached 2040m (6693')
  50.1714, -123.075511.3Back to up route

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Recommended By:

Associated Road/Trail Bulletins
Beverley Creek Winter Trail