5.0
(2779)
7,725
hikers
DeLonde and Blue Bird Loop Trail
01:55
7.10km
90m
Hiking
Hike the easy 4.4-mile DeLonde and Blue Bird Loop Trail in Caribou Ranch Open Space, exploring historical sites and diverse scenery.
Last updated: February 26, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
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1.89 km
Switzerland Trail
Highlight (Segment) • Trail
It connected the Blue Bird Mines to attract tourists around 1905. Today the railway no longer exists but a very pleasant path replaces it.
Tip by
3.37 km
Blue Bird Mine Complex
Highlight • Historical Site
The period of activity of the mine lasted about 90 years. After that the mines became a tourist attraction.
Trains brought summer "excursionists" from Boulder to the mountains for picnics, wildflower collecting, and sightseeing.
Tip by
4.82 km
DeLonde Homestead
Highlight • Historical Site
Tip by
7.10 km
End point
Parking
Way Types & Surfaces
Way Types
5.43 km
1.30 km
357 m
Surfaces
3.76 km
3.33 km
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Elevation
Highest point (2,650 m)
Lowest point (2,600 m)
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Weather
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Today
Wednesday 27 May
9°C
3°C
94 %
Additional weather tips
Max wind speed: 14.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
Where do I park to access the DeLonde and Blue Bird Loop Trail?
The trail is located within the Caribou Ranch Open Space near Nederland, Colorado. Parking is available at the designated trailhead for the Open Space. Be aware that parking can fill up, especially on weekends.
Is this trail suitable for beginners or families?
Yes, this trail is generally considered easy to moderate with mellow terrain and minimal elevation gain, making it suitable for beginners and families. It's a pleasant day hike through diverse scenery.
How long does it typically take to complete the loop?
The DeLonde and Blue Bird Loop Trail is approximately 4.5 to 4.8 miles long. Most hikers can expect to complete it in about 1 hour and 55 minutes, depending on their pace and how long they spend exploring the historical sites.
What kind of terrain and scenery can I expect on the trail?
You'll experience a mix of single-track and double-track paths, including sections that follow the old railbed of the historic Switzerland Trail. The scenery is diverse, transitioning between pine and spruce forests, open meadows, and aspen groves. You might also catch glimpses of the Continental Divide.
What historical sites or natural features can I see along the way?
The trail is rich in history and natural beauty. You can explore the historic DeLonde Homestead and take a short spur to the Blue Bird Mine Complex, both with interpretive signs. You'll also follow parts of the old Switzerland Trail railroad bed. Keep an eye out for beaver ponds along North Boulder Creek.
What is the best time of year to hike this trail?
The trail offers different charms throughout the year. Mid-August brings abundant wildflowers, and the aspens provide vibrant fall colors. However, be aware of seasonal closures from April 1 to June 30 for elk calving season and to protect migratory birds.
Are there any seasonal closures or wildlife considerations for the trail?
Yes, the Caribou Ranch Open Space, including this trail, is closed annually from April 1 to June 30. This closure protects elk during their calving season and migratory birds. The area is known for wildlife, including elk, so always observe from a distance.
Is the DeLonde and Blue Bird Loop Trail dog-friendly?
No, dogs are not permitted on this trail or within the Caribou Ranch Open Space. This regulation helps protect the abundant wildlife in the area.
Are there any permits or entrance fees required for Caribou Ranch Open Space?
No, there are typically no permits or entrance fees required to hike in the Caribou Ranch Open Space. It is managed by Boulder County Parks & Open Space.
Does the trail connect with other paths?
Yes, the route incorporates sections of several paths within the Open Space, including the Blue Bird Loop Colorado and North Western R. R., Blue Bird Loop, DeLonde Trail, and DeLonde Trail Colorado and North Western R. R.
Are there cafes or accommodations near the Caribou Ranch Open Space?
The nearest town is Nederland, Colorado, which offers various amenities including cafes, restaurants, and some accommodation options. It's a short drive from the Caribou Ranch Open Space.