Los Angeles' Old Bald Mount Baldy: Eight Hairpin Turns and a 13% Final 400 Meters

There’s something hard to miss on the Los Angeles skyline: looking northeast from downtown, above a ridge line, sits a bare, white dome. Locals call it Old Baldy. Its official name is Mount San Antonio, 3,069 meters above sea level, the highest peak in the San Gabriel Mountains and the ceiling of the greater Los Angeles area.

And the paved road leading to it is one of the toughest climbs in North America.

If you watched the Amgen Tour of California between 2011 and 2019, you probably remember this finish: riders zigzagging up a road that gets progressively narrower, rougher, and steeper, against a backdrop of dry pine forests and exposed rock walls, ending in front of a ski resort’s gondola station. Mount Baldy served as a summit finish on the penultimate stage in 2011, 2012, 2015, and 2019, and on stage five in 2017 — it was the race’s most frequently used card for deciding the overall winner.

The reason is simple: this road doesn’t play fair.

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1. Route Basics

Mount Baldy has a unique quirk — the “summit” you ride to isn’t actually the summit. The pavement ends at the ski resort’s gondola station (below Baldy Notch) at about 1,942 meters; the true 3,069-meter peak can only be reached on foot. But even just reaching the end of the road is a climb you’ll remember for a lifetime.

And there are several ways up.

Item	Details
Country / Mountain Range	USA, California, San Gabriel Mountains, on the Los Angeles / San Bernardino county line
Main Starting Points	Claremont (via Padua Avenue) / Glendora (via GMR) / Ontario (via Euclid Ave)
Finish	End of Mount Baldy Road, ski resort gondola station (approx. 1,942 m)
Length	Approx. 21.8–40.2 km depending on route
Total Elevation Gain	Approx. 1,482–1,886 m depending on route
Average Gradient	Approx. 4.7%–6.8% (including flatter approach sections)
Maximum Gradient	Steepest 100 m approx. 14.5–14.9%; final 400 m to gondola station averages up to 13%
Start / Finish Elevation	Approx. 230–460 m → approx. 1,942 m
Claim to Fame	Amgen Tour of California summit finish (2011, 2012, 2015, 2017, 2019); one of the hardest paved climbs in Southern California

Data Comparison for the Four Routes

Route	Length	Elevation Gain	Average Gradient	Characteristics
Padua Avenue (from Claremont)	Approx. 21.8 km	Approx. 1,482 m	Approx. 6.8%	Most direct, steepest, the backbone route used by the race
Thompson Creek Trail	Approx. 23.8 km	Approx. 1,545 m	Approx. 6.5%	A variation of Padua
Ontario (via Euclid Avenue)	Approx. 29.2 km	Approx. 1,635 m	Approx. 5.6%	Starts from lower plains, greater total elevation gain
Glendora Mountain Road Grand Loop	Approx. 40.2 km	Approx. 1,886 m	Approx. 4.7%	Includes 16 hairpin turns and multiple descents; actual climbing sections are steeper

A note on data discipline: The “4.7% average” for the GMR route is a figure diluted by several downhill sections in the middle — it doesn’t mean it’s easier to ride. Excluding the descents, the actual climbing sections average around 6%, and the total length is much greater. Different databases use different starting points, so discrepancies in numbers are normal. Trust the road signs on site and your own bike computer.

2. Section-by-Section Breakdown: A Road That Gets Meaner the Higher You Go

Using the classic Padua Avenue → Mount Baldy Road route as an example, the difficulty stacks up in steps.

Section 1: Citrus Groves and Suburbs (first approx. 5 km)

Starting from Claremont, Padua Avenue is a straight climb through residential areas and scattered citrus groves. Gradients are between 3–5%, the road is wide, and there are traffic lights. This section’s job is simply to push you from the flats to the foot of the mountain.

Pacing note: Local riders on the road will pull you along here, and because the gradient is gentle, it’s easy to ride near FTP without realizing it. The real difficulty of this road comes after the 15 km mark — every extra watt spent up front will cost you threefold later.

Section 2: Entering San Antonio Canyon and Those Three Kilometers (approx. 5–14 km)

After turning onto Mount Baldy Road, the scenery changes instantly. The road starts climbing up San Antonio Canyon, with a dry creek bed on one side and rock walls on the other. There are a few short tunnels in this section, and for about three kilometers after the tunnels, the average gradient jumps to around 9% — this is the first real crux of the entire climb.

This is also usually where the first riders start to get dropped. A three-kilometer stretch at 9% won’t feel unfamiliar to Taiwanese cyclists (roughly the sensation of certain sustained steep sections on Provincial Highway 14A), but keep in mind: you’re not even halfway yet.

When you reach Mount Baldy Village, you’re at approximately 1,270 meters. This is the most important resupply point on the entire route — the village has several food options and is your last reliable place to refill water before heading up. Glendora Ridge Road also intersects here.

Section 3: Village to Icehouse Canyon (approx. 8.2 km, avg. approx. 8%)

Past the village, the road narrows, the trees get taller, and traffic thins out. This section is about 8.2 kilometers at an average gradient of roughly 8.1%, with no obvious rest points — just a steady grind.

Tall pine forests begin to appear, and the air cools noticeably — you’ve left Southern California’s desert-edge climate and entered a montane coniferous zone. This is the section that feels most like a “real mountain.”

Pacing note: This stretch is your engine room. Hold an intensity you can sustain for over 45 minutes (roughly 85–92% of FTP), keep a steady cadence, and don’t overreact to gradient changes at every corner.

Section 4: The Eight Hairpins (approx. 3.3 km, avg. approx. 9.5%)

Past the Icehouse Canyon Road junction, the road bares its true fangs. Eight tight, steep hairpin turns, with the 3.3-kilometer section averaging about 9.5%.

Several features make this harder than the numbers suggest:

• The gradient on the inside of each turn is significantly steeper than the average, so you’ll briefly hit 12%+ in every corner.
• The road narrows, guardrails are intermittent, and below you is the canyon.
• The pavement starts deteriorating — patches, cracks, and loose rock debris.
• You’ve already been riding for over an hour, and you’re hitting the steepest part of the route at your most fatigued.

Pacing note: Switch to a “corner-in, corner-out” rhythm. Shift down early before entering the inside of a turn, allow yourself to grind at 55–60 rpm for a dozen seconds through the apex, then immediately return to a seated, smooth spin to bring your cadence back up. Don’t stand and sprint out of the inside of a corner — that will blow up your heart rate before the steepest remaining section.

Section 5: The False Rest at Manker Flats and the Final 400 Meters

Past the hairpins, you’ll reach the Manker Flats area. The gradient eases slightly here, there’s a campground, and it feels like a psychological breather.

But it’s a trap. The final roughly 400 meters up to the ski gondola station average 13%, and the pavement is the worst of the entire climb — broken asphalt, gravel, and sections that look like they’ve been washed out by water.

These 400 meters will define your memory of this mountain. It’s too short to pace, and too steep to grind out seated. And it comes at 1,900 meters of elevation, after you’ve already been riding for two hours.

Tactical advice: On the gentler slopes of Manker Flats, finish your food, shift into your easiest gear, and get your heart rate down. Once you see the gondola station buildings, break it into chunks by “counting fifty pedal strokes” — fifty strokes, and it’s over.

3. Power and Pacing Estimates

Model and Assumed Parameters

Standard climbing power model:

P = (Fg + Fr + Fa) × v ÷ drivetrain efficiency

Fg = m × g × sin(arctan(gradient))        gravitational component
Fr = m × g × cos(arctan(gradient)) × Crr   rolling resistance
Fa = 0.5 × ρ × CdA × v²                    aerodynamic drag

Parameter	Value
Rider weight	70 kg
Bike and gear	9 kg (total 79 kg)
g	9.81 m/s²
Crr	0.005 (road tires on asphalt)
CdA	0.32 m² (seated climbing position)
ρ	Calculated by elevation; Padua route average elevation approx. 1,201 m, ρ ≈ 1.090 kg/m³ (89.0% of sea level)
Drivetrain efficiency	0.975

Full Padua Avenue Route (21.8 km / 1,482 m / 6.81%)

Power-to-Weight Ratio	Corresponding Rider Profile	Actual Power	Estimated Finish Time	Average Speed	VAM
2.0 W/kg	Beginner, just finishing	140 W	Approx. 2:33	8.5 km/h	Approx. 581 m/h
2.5 W/kg	General enthusiast	175 W	Approx. 2:04	10.6 km/h	Approx. 719 m/h
3.0 W/kg	Solid weekend rider	210 W	Approx. 1:44	12.6 km/h	Approx. 854 m/h
3.5 W/kg	Advanced	245 W	Approx. 1:30	14.5 km/h	Approx. 985 m/h
4.0 W/kg	Strong amateur	280 W	Approx. 1:20	16.3 km/h	Approx. 1,111 m/h
5.0 W/kg	Competitive	350 W	Approx. 1:06	19.9 km/h	Approx. 1,350 m/h
6.0 W/kg	Professional level	420 W	Approx. 57 min	23.1 km/h	Approx. 1,572 m/h

Key Section: The Eight Hairpins (3.3 km / 9.53%)

Power-to-Weight Ratio	Estimated Time	Average Speed
2.0 W/kg	Approx. 31 min	6.3 km/h
2.5 W/kg	Approx. 25 min	7.9 km/h
3.0 W/kg	Approx. 21 min	9.4 km/h
4.0 W/kg	Approx. 16 min	12.4 km/h
5.0 W/kg	Approx. 13 min	15.3 km/h

Note the 2.0 W/kg row: 31 minutes. That means a rider on the edge of beginner level would spend over half an hour on just these 3.3 kilometers. This is why it’s strongly recommended to first confirm you have a light enough gear — grinding for half an hour at 9.5% with too big a gear will make your knees complain.

The Final 400 Meters (13.11%)

Power-to-Weight Ratio	Estimated Time	Average Speed
2.0 W/kg	Approx. 5:07	4.7 km/h
3.0 W/kg	Approx. 3:26	7.0 km/h
4.0 W/kg	Approx. 2:35	9.3 km/h
5.0 W/kg	Approx. 2:05	11.6 km/h

4.7 km/h is slower than walking. This is why gearing is a make-or-break equipment choice on this road.

Estimates for Other Routes

Route	3.0 W/kg	4.0 W/kg	5.0 W/kg
Padua Avenue (21.8 km / 1,482 m)	Approx. 1:44	Approx. 1:20	Approx. 1:06
From Ontario (29.2 km / 1,635 m)	Approx. 1:59	Approx. 1:33	Approx. 1:17
GMR Grand Loop climbing sections (40.2 km / 1,886 m)	Approx. 2:24	Approx. 1:54	Approx. 1:36

Answering a Common Question: Does the Altitude Make You Faster?

Thinner air theoretically reduces wind resistance. Let’s actually calculate it: on a 9.5% gradient, putting out 280 W,

Elevation	Air Density	Estimated Speed
460 m (base)	1.172 kg/m³	12.38 km/h
1,200 m (mid-section)	1.090 kg/m³	12.41 km/h
1,900 m (top)	1.017 kg/m³	12.43 km/h

The difference is less than 0.5%. Because at 12 km/h on a steep climb, aerodynamic drag accounts for such a small fraction of total resistance that it’s almost negligible — gravity is the absolute protagonist.

In other words, at Mount Baldy’s elevation, the aerodynamic dividend from altitude is nearly zero, but the physiological cost is very real (1,942 meters is enough for some people to feel a decline in VO2max). This is something many people get backwards. (When this series covers Colorado’s 3,700-meter routes, that balance will completely shift — there, air density is only about 70% of sea level.)

All of the above are estimates from a physical model, not accounting for wind direction, road surface roughness, body size differences, or conditions on the day. Actual results will vary.

4. Glendora Ridge Road: Possibly the Best Ridge Road in the World

If you only have one day and your legs allow it, the GMR Grand Loop is highly recommended: start from Glendora, climb Glendora Mountain Road to the ridge, take Glendora Ridge Road across to Mount Baldy Village, then climb to the ski area, and finally descend Mount Baldy Road directly back to the flats.

The Glendora Ridge Road section is about 19 kilometers. What makes it special is that you’re riding almost on the knife’s edge of the ridge — on both sides, canyons drop hundreds of meters deep, the views are wide open, and traffic is minimal. A media outlet specializing in world routes has described it as “possibly the best ridge road in the world.”

The rhythm of this road is completely different from a typical climb: it’s a series of ups and downs, with 16 hairpin turns total, and you’ll constantly be switching between “accelerating through corners” and “short climbs.” This is a completely different pacing challenge — you’ll accumulate a lot of anaerobic debt without realizing it, then face that final 9.5% hairpin section with legs that are already half empty.

Reminder: Road conditions on GMR and Glendora Ridge Road vary greatly, and they have been closed for extended periods due to wildfires and landslides. Be sure to check the road’s open status before you go.

5. Weather, Seasons, and Risks

This Mountain Has Some of the Most Extreme Temperature Swings in Southern California

The most underestimated thing about Mount Baldy is the temperature difference between the base and the summit. You might start in Claremont in dry 30°C heat, then two hours later encounter 15°C with strong winds at the 1,942-meter gondola station.

In Southern California, this temperature swing is especially dramatic in spring and fall. A lightweight windbreaker is absolutely essential, not optional.

Snow in Winter

Mount Baldy is home to the only ski resort near Los Angeles. In winter, the mountain gets snow and ice, and roads may close or require chains. For cyclists, the upper half (above the village) is essentially not a viable option in winter.

Wildfires and Landslides

The San Gabriel Mountains are a high-risk zone for California wildfires. In recent years, multiple major fires have caused long-term closures of GMR, Glendora Ridge Road, and some other mountain roads. These closures often last for months or even longer. “It was rideable last year” doesn’t mean it’s rideable this year — always check the latest announcements.

That Descent Is Genuinely Dangerous

Multiple riders have mentioned the same thing: the descent on Mount Baldy Road from the gondola station is a technically demanding downhill.

• Steep gradients (starts at 13%)
• Poor road surface (broken pavement, gravel, patches)
• Tight corners (eight hairpins)
• Incomplete guardrails

Recommended approach: Before descending, let both your brakes and your body cool down (rest five to ten minutes at the gondola station), put on a jacket, and keep your speed at a level that feels “a little too slow.” Be ready to stop at any moment for the first 3 kilometers. This is not the place to chase a Strava downhill KOM.

6. A Taiwanese Cyclist’s Perspective

Difficulty Conversion

Comparison Item	Mount Baldy (Padua route)	Taiwan Reference
Length	Approx. 21.8 km	Slightly longer than the scale of the Beiyi Highway (Pinglin to Shihpai)
Elevation Gain	Approx. 1,482 m	Roughly the elevation gain of the “Wushe → Wuling” section
Average Gradient	Approx. 6.8%	Noticeably steeper than the overall average of Provincial Highway 14A
Longest Sustained Steep Section	3.3 km @ approx. 9.5%	Similar to the sustained steep section from Cuifeng to Yuanfeng on Highway 14A, but longer
Steepest Short Section	400 m @ approx. 13%	Similar to certain short steep walls on County Road 106 or Buyan Pavilion
Maximum Elevation	Approx. 1,942 m	Roughly the height of Yuanfeng, less than two-thirds of Wuling

The most direct way to put it: If you can ride from Wushe to Wuling in under 2 hours, you’d probably land somewhere between 1 hour 30 minutes and 1 hour 45 minutes on Mount Baldy. But Baldy will feel more exhausting than you expect, because its steep sections are denser, rest points are fewer, and it lacks the “you’re climbing the whole way so you’re mentally prepared” rhythm of Wuling — Baldy tricks you with five kilometers of gentle slope first.

Why Taiwanese Cyclists Will Love This Road

1. The steep section structure is very similar to Taiwan’s: sustained mid-length steep grades of 8–10% are the terrain Taiwanese cyclists know best, unlike the “foreign” feel of certain long, steady 7% European mountains.
2. Altitude-friendly: 1,942 meters requires no acclimatization and is completely unnoticeable for someone who rides regularly in Taiwan.
3. Convenient access: About an hour’s drive from downtown Los Angeles, and easy to get to via LAX.
4. A clear sense of history: You’re riding the same road where pro riders decided the overall title — that sense of connection is a powerful motivator.

Practical Preparation

• Gearing: This is the strongest recommendation in this article. A compact crank (50/34) with an 11-34T cassette is the entry-level standard; if your FTP is below 3.5 W/kg, seriously consider a gravel drivetrain or an even larger cassette. That final 400 meters at 13% won’t get any easier just because you’re too proud to gear down.
• Water: Fill up at the base in Claremont/Glendora; Mount Baldy Village is the only reliable mid-route resupply. There’s no dependable water source between the village and the gondola station. Bring at least two bottles.
• Food: The village has food options, and the gondola station ticket office has a few snacks, but hours are unreliable — don’t count it in your nutrition plan. Carry energy bars in your pockets.
• Timing: In summer, start early in the morning to avoid the heat on the flat sections.
• Traffic rules: Drive/ride on the right side in the US; mountain roads may have recreational motorcycle and sports car traffic, so hold your line through corners.

7. Safety Reminders

• Hypothermia is the most realistic risk on this mountain. 30°C at the base, 15°C at the summit, plus wind chill from descending at 40+ km/h — a soaked jersey will rapidly strip your body heat. A jacket and full-finger gloves are standard equipment.
• Brake fade: On a continuous 1,900-meter descent, use intermittent hard braking rather than prolonged dragging to give your brakes a chance to cool.
• Falling rocks and debris: Mountain roads constantly have gravel and branches on the surface; look far enough ahead when descending.
• Wildlife: The mountain has coyotes, deer, and rattlesnakes. Be especially alert at dawn and dusk.
• Cell signal: Signal is poor in the canyon sections; if riding solo, tell someone your route and expected time in advance.
• Heat: The flat sections can exceed 35°C in summer. If you experience dizziness, nausea, cool clammy skin, or stop sweating, stop exercising immediately, move to shade, and sip water — these are warning signs of heat exhaustion that can progress to heatstroke.
• This article is route information sharing and does not replace professional medical evaluation. Those with cardiovascular disease, chronic conditions, or recent illness should consult a physician first. Training advice varies greatly between individuals and should be progressed gradually.
• Do not race on public roads open to traffic.

8. Four Mistakes That Can Ruin the Day

Mistake One: Pushing with the locals in the first 5 km. The gentle slope of Padua Avenue is the biggest trap on this road. It makes you think you’re having a great day. The fix: set a hard power or heart rate ceiling for the first 30 minutes, even if it means watching others ride away.

Mistake Two: Not bringing a light enough gear. This is the most common failure for out-of-town riders. Grinding up a 13% grade with a 28T not only means you can’t ride, it’s also a fast track to knee injury. The fix: before you leave, test on a short steep climb in Taiwan whether your easiest gear can sustain 50 rpm.

Mistake Three: Treating Mount Baldy Village as “almost there.” When you reach the village, you’ve completed about 60% of the distance, but the remaining sections average more than two percentage points steeper. The fix: resupply fully at the village and reset your pacing — treat it as the start of the second half, not the outpost of the finish.

Mistake Four: Showing off on the descent. This road’s downhill is where you can actually get hurt. The fix: treat the descent as a separate task to prepare for — rest, add layers, check your brakes, slow down. Your result was already recorded the moment you reached the gondola station.

10. Why Race Directors Love Putting It on the Penultimate Stage

The Tour of California used Mount Baldy as a summit finish five times (2011, 2012, 2015, 2019 on the penultimate stage, 2017 on stage five). That’s no coincidence — the terrain structure of this road happens to meet all the conditions for “creating gaps in the overall classification.”

First, it’s long enough, but not too long. A climb of just over twenty kilometers puts pro riders in the 45-minute to one-hour range, right in that most painful zone between VO2max and threshold. A climb too short (ten minutes) becomes a pure power duel where punchy riders can sneak through; a climb too long (over 90 minutes) forces everyone into conservative threshold pacing, and gaps don’t open up.

Second, its gradient is “heavy at the back, light at the front.” Gentle at the start, moderate in the middle, steepest in the final three kilometers — this means the terrain dictates that attacks must come at the end. Whoever still has strength before the hairpin section is the one who can decide the race in the final ten minutes. This design is very viewer- and broadcast-friendly — all the drama is compressed into that final stretch.

Third, that 400-meter finishing ramp. Most summit finishes ease off in the final stretch; Mount Baldy is the opposite. At your most fatigued moment, you hit the steepest road, and the rate at which seconds slip away is magnified. A rider who is 20 seconds behind at the end of the hairpins could easily be 45+ seconds behind at the line.

For amateur riders, these three points mean the same thing: this road honestly reflects your pacing discipline. Every bit of energy saved in the early sections comes back to you at two to three times the efficiency in the final three kilometers; and vice versa. It allows less “grinding through on willpower” than most climbs, because it places the part requiring the most willpower at the moment you have the least of it.

11. How to Train for This Road in Taiwan

Mount Baldy’s demands can be broken into three independent components, and all three can be trained for in Taiwan.

Demand One: 90+ Minutes of Threshold Tolerance

For a general enthusiast, the Padua route is 1 hour 30 minutes to 2 hours of sustained effort. What you need isn’t “a great 20-minute FTP test,” but the ability to hold 80–88% of FTP for over 90 minutes without cracking.

How to train in Taiwan: On the Beiyi Highway (Pinglin out-and-back) or the long sections of the Yangjin P-Zi-Shan-Dao route, do 2×30 minutes or 3×25 minutes in the sweet spot zone with 5-minute recoveries. The goal is to keep the power of the final interval within 5% of the first.

Demand Two: Low-Cadence, High-Torque Tolerance

The 3.3 kilometers at 9.5% plus the final 400 meters at 13% mean you’ll spend a significant amount of time stuck at 50–65 rpm. This range places a different kind of load on both muscular strength and the knee joints.

How to train in Taiwan: Find a short, steep climb with a sustained 10%+ gradient (for example, certain sections of County Road 106 or the steep parts of Datun Mountain) and do 6–8 reps of 3-minute low-cadence climbs (55–65 rpm, primarily seated). This is not an anaerobic sprint; keep the intensity around threshold. The focus is on cadence and muscular tension.

Demand Three: Prolonged Dry-Heat Tolerance and Hydration Discipline

Southern California’s humidity is often only 10–20%, the complete opposite of Taiwan’s humid environment. In dry heat, sweat evaporates instantly, and you’ll severely underestimate your fluid loss.

How to train in Taiwan: This one is hard to simulate in Taiwan, but what you can do is build a “timed hydration” habit — take a sip every 15 minutes whether you’re thirsty or not. Solidify this habit while training in Taiwan so you won’t rely on feel when you get to the American West. Taiwan’s hot, humid summer riding can train your sweating and cardiovascular regulation, which still helps in dry heat, but your hydration judgment logic must be swapped out for a different one.

A Practical Self-Check

Four to six weeks before departure, pick a day to do this test: a continuous climb of 1,400+ meters, including at least 20 minutes on gradients of 9% or more. If you can complete it and still hold your pace on that final section, you’ll do fine on Mount Baldy; if you start losing power on the 9% section, switch to a lighter gear first, then go back and build up your low-cadence strength.

12. There’s Another Way: The Highway 39 Side

Besides the three main routes, there’s also an approach from the Highway 39 (San Gabriel Canyon Road) direction. This road is characterized by being more desolate, with less traffic and more primitive scenery — but that also means resupply points are farther apart and closure risk is higher.

The road network of the San Gabriel Mountains, due to wildfires and landslides, is perpetually in a state of “this one’s open, that one’s closed.” Some sections of Highway 39 have been closed for a very long time. If you see a ride report for a route online, check its date first. A road that was rideable five years ago might be behind a concrete barrier today.

General advice: When planning routes in the San Gabriel Mountains, always have a backup plan. Treat Mount Baldy Road as the core, and the other ridge roads as “bonus if they’re open” additions rather than essential parts of the itinerary.

13. Action Checklist

Before you go:

1. Check road open status (wildfires, landslides, and winter snow can all cause long-term closures).
2. Check your gearing to confirm you can maintain 50+ rpm on a 13% grade.
3. Do an equivalent test in Taiwan: find a route of about 20 km with 1,400–1,500 meters of climbing, record power and time, and compare against the tables in this article.
4. Prepare a windbreaker and full-finger gloves, regardless of season.

On the day:

5. Start in the early morning, saving the flat sections for cooler hours.
6. Deliberately hold back in the first 5 km, keeping power within 100% of your target pace.
7. Resupply fully at Mount Baldy Village: fill water, eat solid food, reset your mental rhythm.
8. Use the corner-in, corner-out rhythm for the 8 hairpins: grind through the inside, spin smoothly out, no standing sprints.
9. Get your heart rate down on the Manker Flats slope, preparing to take on the final 400 meters at 13%.
10. Rest five to ten minutes at the gondola station, put on a jacket, then start descending. Stay conservative for the first 3 kilometers.

What you just rode is the road pro riders used to decide the overall winner of the Tour of California.

Related Reading

• Standing Up 16% in the Final 100 Yards: The Complete Guide to Mount Diablo in the San Francisco Bay Area
• 440 Meters Higher Than Wuling, 11 Miles Without a Tree: Colorado’s Trail Ridge Road
• “No One Will Ever Reach the Top”: Pikes Peak, a Century-Old Racing Shrine, Conquered by Road Bike in Colorado
• Guarded by an Abandoned Ski Resort, a Hidden Gem of the Vuelta: Alto de El Morredero, a Climb with Sparse Data That Twice Rewrote the Race