Where is Mosquito Pass?
Usa, north-america
29 km
4,026 m
extreme
Year-round
Okay, adventurers, buckle up for Mosquito Pass, Colorado! This ain't your grandma's Sunday drive. We're talking about a 29km (18-mile) beast of an unpaved road straddling Lake and Park counties, hitting a lung-busting 4,026m (13,208ft) above sea level.
Located smack-dab in central Colorado within the Pike National Forest, this historic route—once known as "the highway of the frozen death"—winds between Colorado Highway 9 (near Alma) and the old mining town of Leadville.
Now, is it difficult? You bet. Expect tight squeezes where you'll be playing chicken with oncoming traffic, plus steep grades and narrow cliff faces that'll test your nerves. We're talking multiple stream crossings and seriously challenging terrain. A high-clearance 4WD isn't just recommended, it's essential. Leave the 2WD at home, folks. Budget two to three hours for this epic trek, crawling along at a leisurely 3 to 8 miles per hour.
Open typically from July to September, depending on the snow gods' whims, Mosquito Pass demands respect. Rain turns it into a slippery mud pit, and snow can show up any time. Speaking of history, the road itself dates back to the 1870s as a toll road, but construction started in 1949. And the name? Legend has it, a mosquito met an unfortunate end during a town meeting, and well, the rest is history.
Preparation is key! Pack extra layers because that summit can get brutally cold and windy. Because this is a remote area, you should also inspect your tires, fluids, hoses, and belts, and also stock up on supplies and fuel. You'll also want to carry at least two spare tires and tools, emergency flares, extra gasoline, motor oil, and wiper fluid.
The ascent from Highway 9 is a leg-burning 15.77km (9.8 miles) with an average gradient of 5.64%. From Leadville, it's a slightly steeper 12.55 km (7.8 miles) averaging 7.0%.
So, if you're craving a truly wild Colorado adventure, Mosquito Pass is calling your name. Just remember to pack your skills, your courage, and maybe a can of bug spray – just in case the legend is true!
Road Details
- Country
- Usa
- Continent
- north-america
- Length
- 29 km
- Max Elevation
- 4,026 m
- Difficulty
- extreme
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