Diamond Creek (Indian Peaks)
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| | Raps:1-5, max ↨120ft
Red Tape:No permit required Shuttle:None Vehicle:Passenger | ||||||||||||||||||||||||||||||
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| Condition Reports: | 10 Jul 2026
"Possible first descent, including time working out anchors and exit. Water was cool, but rain jackets were adequate. Chose conservative rappel lines |
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| Best season: | Jun-Sept
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39.9947, -105.6448
39.9951, -105.6344
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WaterflowIntroduction
Diamond Creek is a series of waterfalls that descend from the outlet of Lower Diamond Lake to the North Fork Middle Boulder Creek Valley near the 4th of July Trailhead. The canyon is generally low commitment overall, as nearly all drops can be bypassed. Additionally, nearly all drops can be rappelled optionally outside of the water flow, so this may be a reasonable early season canyon. Diamond Creek is a scenic adventure that offers the chance for multiple rappels relatively close to the front range. An enjoyable approach on good trails, an optional detour to a beautiful alpine lake, and a relatively quick exit make it a worthwhile canyon with decent pay-to-play ratio. The greatest detractor of the canyon is the abundance of loose rock and scree that must be carefully navigated during the descent.
Approach
From the 4th of July Trailhead above the small town of Eldora, hike the main trail following signs towards Lower Diamond lake. Before long, views to the left will open up revealing the Diamond Creek Drainage:
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At 1.1 miles, take the left hand split towards Lower Diamond lake. The trail will lose some elevation, crossing the north fork of Middle Boulder Creek, and then continuing to ascend up towards Lower Diamond Lake. At about 2.5 miles, an optional 5-10 minute detour may be taken to view Lower Diamond Lake. If not stopping at diamond lake, a trail fork will be reached with the left trail labeled traveling toward's the Devil's Thumb. Take this smaller, less traveled trail another 500 feet or so until it reaches Diamond Creek, below the outlet of Diamond Lake. From here, take small social trails to the left following Lower Diamond Creek until it reaches it's first drop. A log a couple of hundred feet above the drop allows for easy crossing of the creek if accessing anchor options DCR of the first drop.
Descent
Rappel 1: 35-40 feet A number of sturdy trees offer good anchor options. The furthest left sturdy tree provides a good anchor that allows for a rappel of about 35 feet, mostly avoiding the water until the final 10 feet or so. Be wary of sharp rock edges and loose rock on this rappel.
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Continue downclimbing, generally staying close to the watercourse where larger, generally more stable boulders are located. There is still an abundance of loose rock throughout this canyon, so be very cautious as descending through the boulders and smaller rocks.
Rappel 2: About 30 feet, depending on anchor. The creek will drop between a couple of larger boulders, for a small 20 foot drop that may be rappelled, or bypassed canyon right. The bypass is straightforward, but very loose.
Continue downclimbing, until reaching the next optional rappel.
Rappel 3: About 50 feet, depending on anchor choice. This rappel can be easily bypassed by downclimbing boulders on canyon left, however, the rappel appears to be worthwhile.
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Continue downstream until it levels out a little, and a grassy area with multiple sturdy anchor trees is found on canyon right.
Rappel 4: About 120 feet Any of these trees canyon right may be used as an anchor for the next drop, and further back trees will put the rappeler in more of the water flow, but will require a longer rope. The second sturdy tree on the right allows for a 120 foot rappel in the water course. The rappel begins with a long, low angle water shoot, that eventually steepens for the final 30 feet. Water flow is completely avoidable, depending on the canyoners preference. This drop is also easily bypassed canyon right, but it is one of the most enjoyable rappels of the canyon.
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Downclimb a few small ledges, leading to the next small drop.
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Rappel 5: 70 feet depending on anchor choice Boulders wedged in a couple of large cracks canyon right serve as good anchors for this next drop. Be wary of the rope pull here, and be alert to sharp rock edges. The actual drop is only about 20-30 feet, and depending on water levels, may be downclimbed in a smaller semi-dry chute canyon right. The Black Swift has been observed nesting in a crack above the waterfall on Canyon Left. Rappelling canyon right is recommended to avoid disturbing the nest.
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The creek immediately leads to one more 15 foot drop before leveling out. This drop could be rappelled, however, slabs canyon right provide an easy bypass, and provide a good spot to remove wetsuits for the exit
Exit
The exit requires about a half mile of moderate bushwhacking back to the parking area, while trying to avoid or minimize crossing private land. A GPS Program with Private land boundaries, such as Gaia or OnX Backcountry, is helpful for this section.
After the technical portion of the canyon, Diamond Creek almost immediately enters private property. It is possible to completely avoid private property on the exit by heading uphill due south, steeply gaining 200 vertical feet over about 500 feet of travel. This will take you up and around several scree fields, eventually running into another ravine that will need to be crossed to avoid private property. Once clearing the edge of the private land, head due east towards north fork middle boulder creek, crossing the creek, traveling through a small campground, and back to the 4th of July Trailhead.
It may be a little easier to maintain elevation level, slightly cutting the corner of the private land. This will involve crossing a couple of talus fields and following game trails heading southeast until reaching a ravine, and then losing elevation to avoid the steep portion of the ravine until it is easy to cross. continue approximately southeast until a large meadow is reached. If your shoes are already wet, this muddy meadow provides relatively easy travel up to the creek crossing, where you may wash your shoes off. If taking this option, please be extremely discrete and respectful of landowners.
Red tape
4th of July Trailhead can be very busy in the summer, and a shuttle system is in place Friday-Sunday during summer months to access the lower Hessie Trailhead. This Shuttle does not go all the way to 4th of July Trailhead, but drivers are typically stopped near Nederland High School and are asked about their final destination. Available parking spots at 4th of July are monitored, and a line of cars waiting for a spot is established at the High School. Once a parking spot is available, a car will be sent up. As such, it is usually best to arrive very early during the weekend when parking fills early, to avoid lengthy lines. Weekdays are less busy, but parking can still fill.
The lower valley has quite a bit of private property to navigate. Mapping software with private lands boundaries is helpful in avoiding or minimizing any crossing of private lands. It is possible to avoid private lands entirely, with a little extra effort.
The Black Swift has been observed nesting near the final waterfalls of this canyon. While the nest was up on a cliffside, and well out of the route of travel, it would be wise to be cautious when on rappel to be aware of any nest sites that could be behind the falls.
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Background
Possible first canyoning descent July 10th, 2026 by Bryce and Jessica Wilson