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Home›Natural Surroundings›Exploring Northern Arizona’s Lava River Caves

Exploring Northern Arizona’s Lava River Caves

By Andrea Aker
September 17, 2011
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NEAR FLAGSTAFF – About 14 miles north of Flagstaff in the Coconino Forest, a network of caverns and lava-encased passages lie just below the feet of hikers, hunters and other recreation seekers.

Arizona Lava River Cave Opening

Opening to Lava River Caves in Northern Arizona. Photo Credit: Kevin Korycanek

This relatively small slit, hidden amongst boulders, will take you there. Just large enough to accommodate a grown a man, this doorway leads to a mile-long lave tube.

There’s some tricky footing near the beginning, and most adults will need to a crouch a little, but the cave quickly opens into a large corridor, the ceiling reaching 30 feet in some areas.

Dress warmly. The caves remain between 35 and 45 degrees F year round. You may encounter icicles and icy puddles, even in the middle of summer. The winter’s cold air settles into the caverns with no way to escape, and the lava serves as a superb insulator.

The passageway can be slippery, but overall, enjoyable for all fitness levels. A flashlight or headlamp is essential. It’s the only source of light you’ll have to navigate the rocky the path. The caves are stark, yet still fascinating. The lava formations hold their own unique beauty, similar to a desolate desert. It’s doubtful you’ll encounter any critters. Some bugs and bats visit the caves, yet they’re typically scared away by human visitors.

Arizona Lava River Cave Opening, Inside

View of Lava River Cave Opening from Inisde Cave. Photo Credit: Kevin Korycanek

History of the Lava River Caves

According to the Coconino National Forest Service, these tubes were formed some 700,000 years ago by molten rock that erupted from a volcanic vent in nearby Hart Prairie. The top, sides and bottom of the flow cooled and solidified, as the insides of the lava river continued to flow, emptying out the present cave.

A group of lumbermen are credited with discovering the caves in about 1915. However, I have a strong hunch the Native Americans knew of the massive passageways long before.

Dubbed a “a natural museum,” this lava tube is the longest of its kind in Arizona. If fact, I doubt there are few places like it on Earth that are so easily accessible.

Facts at a Glance

  • Season: The lava river caves are open all year, yet you may need skis in the winter. Weekends tend to busy, so visit the area during the weekdays to avoid the crowds.
  • How to get there: Drive nine miles north of Flagstaff on US 180 and turn west on Forest Road 245, near milepost 230. Continue three miles to Forest Road 171 and turn south. Travel one mile to where Forest Road 171B turns left a short distance to Lava River Cave. Signs will guide you. The road is appropriate for all vehicles, and the parking lot is marked.
  • What to bring: Warm clothes, jacket, flashlight or headlamp, water, athletic shoes or hiking boots.
  • More info: Flagstaff Ranger District, (928) 526-0866

Have you ever been to Arizona’s Lave River Caves? Leave a comment about your experience.

(Visited 781 times, 1 visits today)

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Tagshikinghistorylandmarksrock formations

5 comments

  1. Wandering Justin 18 September, 2011 at 15:09 Reply

    Usually, where there’s one lava tube, there are others. I know of a few that are sealed off at Sunset Crater. I wonder if the locals are holding out on us.

  2. Shannon 18 September, 2011 at 15:46 Reply

    I hiked this about a year and a half ago. Headlamps and backup flashlights are a must; it is pitch black inside! Very cool, though. You literally walk on top of hardened lava river. Unfortunately, there is graffiti and garbage inside the cave. Nothing goes untouched by humans.

  3. Frank Eory 27 October, 2011 at 20:06 Reply

    I have done Lava River Tube many times over the years — my kids remember doing it when they were wee ones. It really is pretty treacherous once you get down in there — bring multiple extra backup lights, ’cause it really is pitch black and the floor is strewn with boulders. But it’s an incredible experience, spelunking toward the back end in the cool…maybe even cold…climate of the cave!

  4. Celebrating the Centennial: 11 Hotspots for Outdoor Enthusiasts | 12 February, 2012 at 07:01 Reply

    […] plenty of opportunities to explore and connect with Mother Nature. Here are some of our favorites:Exploring Northern Arizona’s Lava River Caves: About 14 miles north of Flagstaff in the Coconino Forest, a network of caverns and lava-encased […]

  5. safaritiger.com » Blog Archive » Experience a Piece of Wild Africa in Northern Arizona | 23 April, 2012 at 08:32 Reply

    […] Exploring Northern Arizona’s Lava River Caves […]

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