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Six-Mile Fold Open Space: A Geological Wonder

Hike through time at Six-Mile Fold Open Space, where dramatic geological formations meet stunning Colorado scenery. A haven for nature and history lovers.

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Six-Mile Fold Open Space, near Boulder, Colorado, offers a unique blend of geological history and outdoor recreation. Its stunning hiking trails wind through a landscape shaped by ancient sea beds and dramatic tectonic folding, providing visitors with breathtaking views and a chance to connect with nature.

A brief summary to Six-Mile Fold Open Space

  • US-36, Boulder, Colorado, 80302, US
  • Monday 12 am-12 am
  • Tuesday 12 am-12 am
  • Wednesday 12 am-12 am
  • Thursday 12 am-12 am
  • Friday 12 am-12 am
  • Saturday 12 am-12 am
  • Sunday 12 am-12 am

Local tips

  • Arrive early in the morning to avoid crowds and secure parking, especially on weekends.
  • Wear sturdy hiking shoes, as some trails can be rocky.
  • Bring plenty of water, especially during warmer months.
  • Keep an eye out for local wildlife, but maintain a safe distance and avoid feeding them.
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Getting There

  • Public Transport

    From downtown Boulder, take the RTD (Regional Transportation District) Bus Route 204 towards the North Boulder Park & Ride. Get off at the 'US-36 & Table Mesa' stop. Walk north on US-36 for about 0.5 miles to the entrance. A single bus fare costs approximately $3.

  • Walking

    For a scenic walk from downtown Boulder, start on Pearl Street and head west to 9th Street. Turn left on 9th Street and walk south until you reach Table Mesa Drive. Turn right onto Table Mesa and follow it until it reaches US-36. Cross the highway (using pedestrian crossings) and head north for approximately 0.5 miles until you see the entrance to Six-Mile Fold Open Space on your right.

  • Driving

    From Boulder, head north on US-36. The entrance to Six-Mile Fold Open Space will be on your right, approximately 0.5 miles past the Table Mesa Drive intersection. There is a parking lot available, but it can fill up quickly, especially on weekends. Parking is free.

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Discover more about Six-Mile Fold Open Space

Six-Mile Fold Open Space, located just outside of Boulder, Colorado, is a captivating destination for hikers, nature enthusiasts, and geology buffs alike. This area showcases a remarkable geological formation known as the Six-Mile Fold, a dramatic anticline formed millions of years ago during the Laramide Orogeny. The folding occurred due to east-west crustal shortening. As you traverse the trails, you'll witness sedimentary layers from the Benton and Niobrara Formations, dating back approximately 65 to 30-40 million years. These layers reveal a fascinating transition from coastal marine environments to deep ocean settings, evidenced by sandstone, limestone, and mudstone deposits. Keep an eye out for marine fossils embedded within the limestone, offering a glimpse into the ancient seas that once covered this region. The open space boasts diverse hiking trails catering to various skill levels. Whether you prefer a leisurely stroll or a more challenging trek, you'll be rewarded with panoramic views of the surrounding mountains and valleys. The area is also home to a variety of flora and fauna, including deer, rabbits, and numerous bird species, making it a haven for wildlife observation and photography. Six-Mile Fold Open Space provides a unique opportunity to explore the intersection of geological history and natural beauty. It's a place where you can immerse yourself in the wonders of the past while enjoying the tranquility of the present.

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