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    Spring Brook North Trail

    • 321 Eldorado Springs Dr
      Boulder, CO 80303
    Overview 

    Great for: Geology, nature
    Spring Brook North Trail
    Park on Hwy. 67 at the Fowler Trailhead. Hike Fowler and take a right on the Spring Book Loop North trail. Just as you begin uphill look for wavy looking rock surfaces on your right (west) side. These are actually exposed cliffs of Dakota Sandstone, and 100 million years ago, this area was a sandy beach, now preserved in the rock. 


    Resources: Here’s an excellent educational, self-guided trek put together by the City of Boulder.