Trinity Alps High Route Part III: Wedding Cake, Mount Hilton & Boulder Lakes

The third and final part of series of posts  on a two day fastpack of the Trinity Alps High Route covers the section from Thompson Peak to the trailhead at Canyon Creek inclduing Wedding Cake, Mount Hilton and Boulder Creek Lakes. This portion of the Trinity Alps High Route was previously covered in the Trinity Alps Traverse report from 2013 and that trip served as inspiration for the Trinity Alps High Route this year. Many additional photos can be found on the 2013 post with different lighting since this section was done in reverse. The preceding two posts were as follows:

From the summit of Thompson Peak descend the sandy southwest slopes and traverse granite benches to the short class 3 climb up a chute to the summit of Wedding Cake, which in my opinion has the best birds eye view of the Canyon Creek Lakes. After descending Wedding Cake traverse on the west side of the ridge until the crest can be easily crossed to the east side. At this point, an awesome 2+ mile “granite highway” section commences. This stretch is stunning with rugged unnamed peaks and spires towering above and sweeping views of the pristine granite slopes dropping off to the Canyon Creek Lakes below. The smooth white granite is interspersed with grassy meadow benches, krummholz and small cascading streams making for a delightful setting.

If headed for Mount Hilton, at the end of this marvelous stretch of granite slabs ascend to a high shoulder on the first of two sub-ridges that need to be crossed to access the Mount Hilton scramble. Once over this shoulder enter a smaller drainage with more talus than granite, but excellent views of the precipitous northeast buttress of Mount Hilton. After traversing through this cirque a convenient ramp can be used to pass the second sub-ridge and deposit one immediately beneath Mount Hilton (those skipping Mount Hilton could simply traverse below this sub-ridge and directly down to Boulder Creek Lakes). This ramp looks somewhat difficult from afar but in reality it’s a class 2 walk-up providing surprisingly easy passage through this barrier that would otherwise involve some tricky climbing. Once over the ridge, ascend steep alpine slopes to the foot of the final class 3 scramble portion up Mount Hilton. The summit provides an amazing vista of the surrounding mountains and an excellent overview of the Trinity Alps High Route. In particular, Sawtooth Mountain sports a particularly impressive profile across the Canyon Creek drainage. From the summit of Mount Hilton to Boulder Creek Lakes is a long and steep descent of over 3,000 feet down to the Boulder Creek Lakes. The upper part of this descent is fairly straightforward on rocks and gravel transitioning to sections of granite slabs in the middle. The lower portion of the descent requires some micro-navigating through some cliff bands and thick brush. Towards the bottom a creek bed may be used in later season to avoid most of the brush. The Boulder Creek Lakes are tucked into a granite bowl with excellent views to Little Granite Peak and Sawtooth Mountain across the canyon. Mount Hilton looms above and the granite slabs surrounding the basin create a magical setting. From Boulder Creek Lakes it’s back on trails. The initial descent to the Canyon Creek is fairly rough and rocky trail but the final few miles along the Canyon Creek Trail are relatively smooth and easy trail miles.    Topping out at just over 9,000 feet, the height of the Trinity Alps is not impressive when compared with the Sierras, but their higher latitude and proximity to the Pacific Ocean allow for significant winter snow accumulation and the existence of a few small patches of permanent ice. The largest of these patches of permanent ice is immediately below Thompson Peak and contains the requisite characteristics to be classified as a true glacier. Known as the Thompson Glacier, this glacier has undergone significant reduction in thickness and surface area as shown in this comparison of photos from the summit of Thompson Peak in 2013 and 2015 (both Labor Day weekend). The ongoing drought and a warming climate mean this glacier is in jeopardy of disappearing entirely. Glaciers were an integral part of shaping the majestic Trinity Alps that we see today with the ubiquitous ice-polished granite faces that embody these mountains, but if this glacier melts away the range would be devoid of true glaciers. thompson glacier comparison annotated

Fastpack Gear:

  • La Sportiva Ultra Raptor: built tough for off-trail travel and sticky sole for rock scrambling
  • Ultimate Direction Fastpack 20: Everything you need and nothing more!
  • Thermarest NeoAir sleeping pad
  • Mountain Hardwear Mountain Speed sleeping bag
  • Extra clothing: Windbreaker, light down jacket, light gloves, beanie (summer temperatures and a reliable weather forecast for a two day trip)
  • Food: bars, pumpkin flax granola, dried fruit and meats
  • Essentials like First-aid, sunscreen, chapstick etc.
  • Canon Powershot S110

The Trinity Alps High Route is an excellent way to see some of the best scenery in the Trinity Alps. The Trinities may not stand out in the typical metrics used to rank mountain ranges, but the uniquely rugged granitic landscape and a true wilderness experience makes this a special spot. In fact, it’s one of my favorite areas to explore. This series of posts has described one route through these mountains, but the possibilities for wandering the lovely alpine terrain in this range are literally endless. I look forward to future trips to the Trinity Alps and hopefully uncovering more gems in this wonderful corner of California.   

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3 thoughts on “Trinity Alps High Route Part III: Wedding Cake, Mount Hilton & Boulder Lakes

  1. Pingback: Trinity Alps High Route Part II: Mirror Lake, Caesar Peak & Thompson Peak | Leor Pantilat's Adventures

  2. Pingback: Trinity Alps High Route Part I: Little Granite & Sawtooth | Leor Pantilat's Adventures

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