Logan Pass

Overview

Logan Pass is a Category 1 cycling climb in the United States, covering 19.8 km from base to summit with a net elevation gain of 958 m. Starting at 1,068 m and topping out at 2,026 m, it looks manageable on paper — until you look at the total ascent figure of 2,693 m. That number, significantly larger than the net gain, tells you what kind of road this is: the profile is not a clean ramp. Expect repeated undulations, brief descents, and regrouping sections that will reset your legs only to demand more from them shortly after.

The average gradient of 4.85% is moderate by Category 1 standards, but that figure is heavily influenced by shallower stretches and brief downhill rollers. The maximum gradient of 33.78% is the number that should command your full attention before you clip in.

How the Gradient Unfolds

The early kilometers are deceptive. The road opens at a manageable pitch, and the relatively low starting elevation at 1,068 m means altitude stress is not yet a factor. Use this section to settle into your rhythm — do not treat it as a warm-up for hard efforts. The total ascent of 2,693 m against a net gain of 958 m means you are doing far more work than the summit elevation alone implies.

As the climb progresses, the gradient becomes less predictable. Sections of genuine steepness interrupt any sense of steady-state effort. The 33.78% maximum pitch is extreme — comparable to the nastiest ramps found on any professional circuit — and hitting it without adequate reserve will end your day. These steep pitches can appear without long warning, so maintaining a buffer in your FTP expenditure through the lower and mid sections is not optional, it is survival.

The final push to 2,026 m arrives with accumulated fatigue from the undulating profile and, depending on conditions, increasing altitude effects. Keep cadence honest and resist the temptation to grind a big gear through the steep sections.

Pacing Notes

• Target a conservative power output early. With 2,693 m of total ascent embedded in a 19.8 km road, every unnecessary surge costs you on the next pitch.
• Do not treat the flat or downhill sections as recovery gifts. Spin lightly and keep the legs turning; do not soft-pedal to a complete rest. Momentum through transitions is useful.
• Identify the steep ramps before you arrive. At 33.78% maximum gradient, any section near peak pitch demands either a seated, controlled grind or a short out-of-saddle effort — not a panicked sprint.
• Use a perceived effort ceiling. If you are unsure of your threshold on this climb, the FTP estimator can help you calibrate a ceiling power to hold through the variable sections.

Gearing Recommendations

The 33.78% maximum pitch makes a compact or sub-compact chainring setup non-negotiable for most riders. A 34×32 or lower combination should be the minimum at the rear if you intend to stay seated through the worst ramps. Riders using standard double chainrings will likely be forced out of the saddle on the steep sections, which accelerates fatigue on a climb this long.

Gravel or adventure riders with wide-range drivetrains are well positioned here. Road cyclists should verify their lowest gear ratio against an expected climbing speed before committing — getting caught in too hard a gear on a 33% ramp with no bailout option is a significant mechanical and physical problem.

Final Assessment

Logan Pass rewards patience and punishes ambition. The 4.85% average makes it look approachable, but the 2,693 m of total ascent and a near-34% maximum pitch put it firmly in the demanding end of Category 1 territory. Treat it like a climb that is longer and harder than the headline numbers suggest — because it is.