South Arapaho Peak – Hiking Colorado’s Front Range

man with mountains behind and words south arapaho peak

South Arapaho Peak is an incredible hike, located just 1.5 hours from Denver. Nestled in the Indian Peaks Wilderness of Colorado’s Front Range, this thirteener won’t disappoint!

Elevation: 13,397 ft (13,408 ft by new measurements)

Trail Length: 8.4 miles roundtrip

Elevation Gain: about 3,250 ft


VIDEO


FIRST ENCOUNTER WITH ARAPAHO PEAK

Several years ago I visited a friend in Boulder, Colorado, and ventured to the Indian Peaks Wilderness to do some backpacking. It was on this journey that I first spotted South Arapaho Peak and it seemed like an easy-enough day hike. However, I had not allowed myself enough time to acclimate to the higher elevations and had to opt for the much easier climb up to Arapaho Pass instead. Nevertheless, the mountain stuck in my head.

Fast forward to last summer when I ventured to Denver, CO to hike part of the Colorado Trail with my cousin. This time, I knew I needed to spend some time acclimating to the elevation and so I embarked on several day hikes to prep, one of which marked my return to Arapaho!

man hiking mountain
A gradual hike up South Arapaho Peak

HIKING SOUTH ARAPAHO PEAK

Located just 1.5 hours from Denver, South Arapaho Peak is quite easy to reach. The trail begins at the Fourth of July Trailhead which features a parking area and restroom. The parking area fits maybe 20 vehicles but there are parking spaces along the Fourth of July Road as well. This 8-mile road is unpaved but four-wheel drive is not necessary.

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Looking back toward the carpark of the Fourth of July Trailhead

Once at the trailhead, follow the gradual Arapaho Pass Trail as it ascends into the Indian Peaks Wilderness. I hiked in early July so the wildflowers were stunning!

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Wildflowers along the way up South Arapaho Peak

Along the way there is a large stream/waterfall to cross that only adds to the enchantment. At some point you will pass a junction for the Diamond Lake Trail but continue on the Arapaho Pass Trail.

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An easy crossing over a mountain stream

Eventually, the trail reaches the Fourth of July Mine, featuring a large hole in the ground and several remnants of mining equipment. Amazing view of Arapaho Peak can be seen from this area.

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South Arapaho Peak towers behind me as I pose on top of old mining equipment

From here, there will be another stream/marshy area and a sign for the Arapaho Glacier Trail. Leave the Arapaho Pass Trail and turn on to the Arapaho Glacier Trail, slowly climbing above treeline.

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I wouldn’t be a hike in Colorado without spotting a marmot!
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Looking back toward Arapaho Pass with the Arapaho Pass Trail down below on the left

As the trail climbs ever higher, the views become more and more stunning with 180º panoramic views. The trail gently switchbacks higher and higher, lined with wildflowers.

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Hiking ever higher

Eventually the trail reached the saddle at around 12,700 ft. At this point, the Arapaho Glacier, the largest glacier in Colorado, can be viewed on the other side of the ridge.

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Reaching the saddle of South Arapaho Peak
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Arapaho Glacier as seen from the saddle

From the saddle the the trail becomes a bit more technical with a rock scramble to the summit. Cairns mark the route to the summit featuring a Class 2 scramble as the trail follows the ridge.

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Nothing too technical as we picked through the rocks to the summit

At last the summit of South Arapaho Peak is reached at 13,397 ft. The view from the top is incredible with 360º views of the Indian Peaks Wilderness. The closest peak is the slightly taller North Arapaho Peak at 13,508 ft. The ridge connects the two peaks but it requires a Class 4 traverse which is above my skill level. Longs Peak can also be viewed in the distance.

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Summit of South Arapaho Peak with North Arapaho Peak to the right

A small shelter wall of rocks has been built where an engraved metal disc marks the nearby peaks. Following the Arapaho Glacier down, several lakes and a reservoir can be seen, which supply the water to the city of Boulder.

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Lakes and reservoir fed by the Arapaho Glacier supply water to Boulder

The descent from the summit is simple, returning the way we came. One the saddle is reached the trail is relatively gentle and the views are stunning, looking out into the Indian Peaks Wilderness.

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Hiking back to the carpark

WHY YOU SHOULD HIKE ARAPAHO PEAK

Overall, South Arapaho Peak is an amazingly beautiful hike. The trail is less than a 2 hour drive from Denver and doesn’t draw the crowds like the 14,000 ft peaks do. The gentle elevation gain makes this an easy hike for beginners, save for the rock scramble near the top. The views are fantastic and there isn’t really anything negative I can see about this hike, save for the small parking lot!

I highly recommend this hike for those visiting Denver and wanting to stray away from the more popular peaks! And for more details on this route, check out this page.


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