Page Type Page Type: Mountain/Rock
Location Lat/Lon: 48.46500°N / 121.091°W
Additional Information Elevation: 8200 ft / 2499 m
Sign the Climber's Log


The massive northeast face of Johannesburg with its hanging glaciers, couloirs, steep rock and prominent NE Buttress becon the climber from throughout the Cascade Pass area. It is simply impossible to ignore the nearly 5,000' relief of the face.

The first ascent of Johannesburg was completed during the famed Ptarmigan Traverse in 1938. They appear to have climbed the standard route up the mountain--the East Ridge (up to low 5th class climbing). These days their route is still the most commonly climbed, while more adventurous souls venture into the Cascade-Johannesburg Couloir, onto the northeast face to climb rock routes above the Sill Glacier or NE Buttress.

There are three standard approaches to the mountain:
1. "Doug's Direct" -- Arguably the best combination of safety and directness... From the Cascade Pass parking lot, hike along the maintained trail to Cascade Pass, turning right at the Pass (near benches) and follow the obvious climber's trail to Mixup Arm. Cross Mixup Arm and descend/traverse rightwards until you get to Cache glacier. Walk past a seasonal waterfall and turn right, ascending the lobe of the Cache and walking rock slabs underneath the East and Northeast faces of Mixup Peak . The glacier ends at a short steep dirt gully that turns to steep heather scrambling after 50m. Some steep heather ascends to the Mixup north ridge notch with a few short sections of 3rd and 4th class climbing on fairly solid rock. Once at the notch (marked with cairns), descend down the backside of Mixup Peak on steep slopes involving 3rd/4th class scrambling and steep heather. Continue descending towards the base of the Triplets buttress. From here, climb up to C-J Col.

2. Gunsight Notch -- From the Cascade Pass parking lot, hike along the maintained trail to Cascade Pass, turning right at the Pass (near benches) and follow the obvious climber's trail to Mixup Arm. Cross Mixup Arm and descend/traverse rightwards until you get to Cache glacier. Climb the Cache, aiming towards the obvious notch on the right side of the glacier (~6600').

3. Cascade-Johannesburg Couloir -- This is undoubtedly the most direct route, but also the most dangerous due to rock/ice fall potential. From the hairpin turn, descend to and cross the Cascade River. Climb up to the obvious terminal moraine and the glacier. Climb the glacier to the Col. One can also access the NE Buttress and Sill Glacier by starting at the base of the couloir. The couloir has been skied.

The mountain sees very few ascents per year--averaging less than 10.

Johannesburg East Ridge Diagram

Getting There

Johannesberg is easily reached via the Cascade River Road off of Highway 20 from Marblemount, WA. Where Highway 20 makes a sharp 90 degree turn on the east side of town (near Buffalo Run restaurant), turn onto Cascade River Road, crossing a bridge. Follow this road for approximately 22 miles (paved turning to gravel) to the Cascade Pass trailhead (approx. ~3600') (NW Forest Pass required). One can also park approximately 300m before the parking lot, near the "hairpin" turn (no parking pass required).

Red Tape

National Park Service backcountry camping permits are required. These free permits can be obtained at the Marblemount Wilderness Information Center.

A NW Forest Pass is required to park at the Cascade Pass trailhead.

Cascade River Road is usually gated at milepost 19, the Eldorado trailhead, in the winter months.

When To Climb

June to September.
Plan an extra day for your ascent. The NPS gives Johannesburg climbers an "extra day" before sending out search & rescue parties due to the complex nature of the mountain and the tendency for climbers to be overdue.

Johannesburg has seen a handful of winter ascents. In addition to avalanche hazards, steep snow & ice, these ascents usually require skiing/snowshoeing approximately 3 miles in from the Eldorado parking lot (MP 19).

Doug's Direct descent photo


Free overnight camping (backcountry use) permits are required to camp on Johannesburg. One can self-register after hours at the Wilderness Information Center. Unlike the nearby Boston Basin area, permits for the Johannesberg Cross Country area are readily available from the NPS. There are no designated sites.

Camp only on durable surfaces (rock, snow) or previously disturbed sites. Campfires are not permitted. If you are travelling cross-country, you must camp at least a half-mile from trails, a mile from designated campsites and 100 feet from lakes, rivers and streams.

Mountain Conditions

Contact the National Park Service's Wilderness Information Center in Marblemount, WA for current area conditions by calling (360) 873-4500 ext. 39

External Links

Additions and CorrectionsPost an Addition or Correction

Viewing: 1-3 of 3

seano - Jul 28, 2014 11:46 am - Hasn't voted

C-J couloir condition

As the Sill glacier breaks up, the Cascade-Johannesburg couloir can be extremely difficult in mid- to late-season, once the snow becomes discontinuous. I descended it 7/26/14 and found a variety of problems, from near-vertical snow-steps transitioning from snow to rock, to multiple crevasses/bergschrunds requiring some creativity to pass. I don't believe these problems were visible from below. It's probably best done as an early-season climb these days.


Tom_Sjolseth - May 4, 2015 12:08 am - Hasn't voted


These problems will almost always be recognizable from below, but not from above. Granted, the C-J is a lousy choice in late-season (up or down). In my experience, but your mileage may vary. I have climbed C-J Couloir in September and we managed just fine (we descended Doug's Direct). I would not have wanted to blindly downclimb C-J at that time because certain problems would have been unforeseen - unlike they were on the ascent. I have also climbed the NE Buttress in mid-October and looked over to the C-J and all problems were visible from below. Just like with any other mountain, the ascent is always the easiest.


seano - Nov 19, 2015 10:04 pm - Hasn't voted

Re: Huh?

I (probably) stand corrected about the problems' visibility from below. I was working with an aged Beckey book when I did this, so I didn't expect it to be such a nuisance, and didn't look too closely from the way up. The bottom line is that the C-J can be a mess these days rather than a continuous snow chute. Do with that what thou wilt.

Viewing: 1-3 of 3



Children refers to the set of objects that logically fall under a given object. For example, the Aconcagua mountain page is a child of the 'Aconcagua Group' and the 'Seven Summits.' The Aconcagua mountain itself has many routes, photos, and trip reports as children.