Coal Creek Regional Trail


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Coal Creek Regional Trail Facts

States: Colorado
Counties: Boulder, Weld
Length: 14.2 miles
Trail end points: S. 66th St. south of Marshall Rd./SR 170 (west of Superior) and Vista Pkwy. (Erie)
Trail surfaces: Concrete, Dirt, Gravel
Trail category: Greenway/Non-RT
ID: 6566811
Trail activities: Bike, Walking

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Coal Creek Regional Trail Description

At the foot of the Rocky Mountains, the Coal Creek Regional Trail offers spectacular views of the front range. You can even identify surrounding peaks with the "peak finder" signage provided at the Aquarius Trailhead near Louisville. You'll meander along Coal Creek from west of Superior in Boulder County to Erie in Weld County, with occasional scenic bridge crossings and trail connections along the way. Be sure to watch for herons, ducks, raptors and many other birds and wildlife.

Parts of the trail are shaded with large cottonwood trees, while other areas offer wide open views of the countryside. Most of the pathway is hard-packed dirt and gravel, although some areas in danger of erosion have been paved with concrete.

In Louisville, you can connect to the US 36 Bikeway, a paved pathway paralleling the roadway between Denver and Boulder.

Parking and Trail Access

Near its western end, trail-goers can find parking and a trailhead in Superior, near the intersection of E. William Street and S. 1st Avenue, across from the Superior Town Office. In Louisville, parking and the Aquarius Trailhead can be found near the western border of Coal Creek Open Space Park, just off Empire Road.

Coal Creek Regional Trail Reviews

I started on S Public road in Lafayette. The trail is well marked and a mixture of gravel, small sections of concrete. There were underpasses to avoid major roads. The countryside was pretty, starting out very lush by the creek, then turning more arid from Lafayette to Eire. There are sections of the trail that were washed out, so while biking, care is needed to navigate those sections. There is a good deal of wild life in and around the trail. Watch out for several prairie dog holes right in the middle of the trail. Bring water and some snacks. Overall, I would recommend the trail.

Had fun on this trail. I started in Erie, although I couldn't locate the trail head by using the directions on here, instead it took to me a residential neighborhood, so I parked there without upsetting homeowners.
Didn't notice the gradual incline, although there were two significant climbs, it wasn't until my return from Superior back to Erie did I notice the decent and FLEW back..... Awesome! Will definitely do this again!

I started at the Aquarius Trailhead and went North East towards Erie. The majority of this trail is dirt which makes it easy on your knees! While I did run through some suburban areas, there were also large stretches through wooded creek areas and open spaces. This trail is great for a long run!


June 10, 2014, I started a mile west of Hwy 287, and immediately encountered 'Trail Closed' signs. Ignoring those, (!) I continued west to Louisville, CO and went as far as the golf course and the crossing of Dillon Rd. Workers were making repairs, so large parts had to be walked rather than biked.

This is a really nice trail that even though it is fairly near civilization most of the time, you can forget that with nice stretches by creaks and open space. Nice to run on with a smooth gravel trail with occasional strips of concrete crossings. Lot's of fun!

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