Klausenpass East Bike Climb - PJAMM Cycling

23.7
PDI
13.9 mi
DISTANCE
4,196 ft
GAINED
5.7 %
AVG. GRADE

FULL CLIMB STATS

Page Contributor(s): Helmuth Dekkers, Netherlands.

INTRO

Klausenpass links Linthal in canton Glarus with Altdorf in Uri, and this eastern side from Linthal is the more dramatic of its two approaches. It runs 22.3 km (13.9 mi) and gains 1279 m (4,196 ft) at an average of 5.7%, topping out at the Klausenpasshöhe at 1948 m (6,391 ft).

That average is misleading - as our friend and contributor Helmuth Dekkers found, this climb is harder than it looks. The first 9.5 km (5.9 mi) average 6.8%, starting with two cobbled hairpins just out of Linthal and continuing through a gallery and a tunnel of roughly 550 m. Then the valley opens onto the Urnerboden, Switzerland's largest alpine pasture and summer home to around 1,200 cows, for nearly 5 km of almost flat road. The final 8 km (5.0 mi) average 7.0%, sweeping past a towering rock cirque before a tight, twisting string of hairpins - Helmuth compared it to a Formula 1 circuit - leads to the saddle.

The road opened in 1900, and from 1922 to 1934 this very Linthal-to-summit course hosted the Klausenrennen, one of the great hillclimb races of pre-war Europe. The race has been revived on the original 21.5 km course, running 25-27 September 2026 with the next edition planned for 24-26 September 2027, and the road is also closed to cars on select days for cycling events such as the Klausen Monument on 13 September 2026. Like all high Swiss passes, Klausenpass closes for winter, typically from October or November until late May or June.

PLAN YOUR ROUTE

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Klausenpass East climbs 22.3 km (13.9 mi) from 662 m (2,170 ft) in Linthal to the 1948 m (6,391 ft) pass, gaining 1279 m (4,196 ft) at an average of 5.7%.

Km 0-9.5: 9.5 km (5.9 mi) at 6.8%, including the cobbled hairpins at the start and the tunnel.
Km 9.5-14.3: 4.8 km (3.0 mi) at just 1.6% across the Urnerboden.
Km 14.3-22.3: 8.0 km (5.0 mi) at 7.0% - hairpins, the cirque and the final ramps to the pass.

The grade is remarkably steady within each climbing section: the steepest kilometer averages 8.0% and the steepest 2 km average 7.7%, so this is a climb of rhythm rather than walls. Take the flat middle section out of the average and the two climbing blocks together run at roughly 7%.
Roadway: Paved the whole way apart from a short cobbled section of roughly 300-400 m on the first two hairpins out of Linthal, which is rough but rideable. Early on, the road passes through a gallery and a tunnel of roughly 550 m with no shoulder - use front and rear lights. A retaining-wall renovation in the Schlierenegg area, between the Urnerboden and the pass, is scheduled to run until October 2026 with traffic-light-controlled single-lane traffic, so expect short waits on the upper climb. The pass closes for winter, typically from October or November until late May or June - check current status before you go.

Traffic: Moderate on summer weekends, when motorcyclists and day-trippers cross between Glarus and Uri and the PostBus runs the route; weekdays are noticeably quieter. The road is closed to motor traffic on select dates for events - including the Klausenrennen hillclimb revival on 25-27 September 2026 - so check event calendars before planning a late-September ride.

Parking: The Braunwaldbahn funicular station in Linthal, near the start, has more than 750 parking spaces. Linthal is also the end of the rail line from Ziegelbrücke, with regular service toward Zurich, so arriving by train is easy.
Gear: Front and rear lights are essential for the tunnel. Grades never get extreme, so a standard compact crankset is plenty, but the summit is exposed and can be cold and windy - bring a wind layer for the long descent back to Linthal.

Provisions: Linthal has shops for supplies before the start. The Urnerboden, at the midpoint of the climb, has a few restaurants and mountain inns open in summer, and there is a restaurant at the Klausenpasshöhe.
Before heading out on any cycling adventure check out our Things to Bring on a Cycling Trip and use our interactive check list to ensure you don't forget anything.
Linthal sits at the head of the Glarus valley, and its most unusual neighbor is Braunwald, a car-free resort village on a sunny terrace about 600 m above town. The Braunwaldbahn funicular, running since 1907, gets you there from Linthal in around seven minutes - a good rest-day trip for walking and views across the Glarus Alps.

The Klausen also pairs well with the Pragelpass, which links Glarus with the Muotathal in canton Schwyz. Helmuth rode both from the east in a single trip, and you can make a big loop by descending the Klausen to Altdorf, following the shore of Lake Lucerne to Brunnen, and returning over the Pragel to Glarus. On weekends, a roughly 2 km section of the Pragel near the Schwyz-Glarus border is closed to motor vehicles, which makes it especially appealing then.

Check current conditions at the pass with our Weather tool before you go.

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CLIMB SUMMARY

Cycling Klausenpass East, Glarus Alps

Ride 22.3 kilometers gaining 1,299 meters at 5.8% average grade.

Warning:  Long tunnel so bring lights.

This is an extremely scenic climb that is harder than its average 5.8% grade suggests.  There is a 5.5 kilometer 1.8% nearly flat section in the middle of the climb that reduces the average grade by a couple of percentage points.  The first 8.5 kilometers and last 8 kilometers each average 7.2%.

Summary by PJAMM friend and contributor Helmuth Dekkers (NL)

I combined Pragelpass with Klausenpass but cycled bot from the eastern side. So I descended from the top of the Pragelpass back to Glarus and then I cycled to Linthal which is where the ascent to the Klausenpass starts. From Glarus to Linthal is a little less than 18km and only goes up with 168m. The actual ascents start at the bridge over the Linth river. Shortly after at the start of the first hairpin turn the cobbles are encountered.  Fortunately it's only the first 2 hairpins that are cobbled and not the rest of the ascent. It's just 300-400m of cobbles which are in fact not too bad.

This is a very scenic bike climb.

After ~700m you enter a gallery which shortly afterwards turns into a tunnel. This tunnel is ~550m long and there is no shoulder for bikes so bring at least a tail light and preferably also headlights. Visibility in tunnels is key! After ~9km of around 8% the road flattens out and the valley opens up and offers a broad  view on the surrounding mountains of the Urnerboden valley.

The road stays flat for ~5.5km and then starts to  make its way up again via 2 hairpin turns. Then a 1km almost straight stretch of road before another set of 4 hairpins are encountered. When you have taken these you see the rock wall of a cirque at the end of the valley and might think how will I ever get out of this valley as the road seems to lead straight to the cirque. The road then first curves to the left and with a hairpin back to the right. Here you cycle past the really impressive cirque as the rock walls tower high above you. It's spectacular! And then, if you can turn your head away from the Cirque which is like a magnet to your eyes, you see neatly tucked away against the rocks the road going up with a lot of twists and turns. It looks like a Formula 1 circuit! When you have mastered that part you'll see the saddle where the actual pass is located. But it's still 2km to go at around 7% before you reach it though.

This is a magnificent pass. Not a lot of traffic, it offers great views including the views on the dramatic cirque and then there are the numerous hairpins which make it feel like a true alpine pass. It's a gem!

Please note it is possible to descend down to Altdorf and then cycle on to Flüelen to follow the road along the Vierwalstattersee to Brunnen. From Brunnen you can cycle up the Pragelpass and then down to Glarus. This is a 127km loop with close to 3,000m difference in level.

Bruder Klaus Kapelle

Collage built by PJAMM with photos from Divisare.com

This chapel was built by Swiss architect Peter Zumthor and consecrated May 19, 2007.  The chapel was transferred by its benefactors to the Nikolaus von der Flue Prayer Foundation which preserves and cares for it now.

Thank you Helmuth.