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Lava River Cave — photo — Dave Bunnell · CC BY-SA 4.0 · Wikimedia Commons

Lava River Cave — photo — Runtime · CC BY-SA 3.0 · Wikimedia Commons

Cave entrance

Lava River Cave

About 1h 30mModerateAny time

Our AI's estimates

Explore the stunning mile-long Lava River Cave, a remarkable underground tunnel formed by volcanic activity. With a rugged path, it offers a unique hiking experience through fascinating geological formations.

Written by our AI

In FlagstaffHiking & trailsOutdoor adventure

What it's like

Visitor experience

IndoorOutdoor

Audience suitability

Family friendly

Time sensitivity

Best season: summer

Trip-planning (estimated)

Crowdedness: moderate

Road-trip relevance

Destination attraction

Our AI's read

Good to know

EntryFree

Where it is

From the centre of Flagstaff14 miStraight-line distance between mapped points.

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On the map

Where it is, and the other places we have mapped around it.

View on OpenStreetMap

Map data © OpenStreetMap contributors. Tiles by OpenFreeMap.

More from OpenStreetMap

Everything else OpenStreetMap holds for this place, as mapped.

AccessYes

Name 1Government Cave

From Wikipedia

Lava River Cave is a lava tube in northern Arizona's Coconino National Forest. At approximately 0.75-mile (1.21 km) long, it is the longest cave of its kind known in Arizona. The cave was discovered by some lumbermen in 1915 and has historically been referred to as "Government Cave" due to its location on the eastern edge of Government Prairie and southeast of Government Peak. Today, Lava River Cave is freely accessible to the general public.

Read more on Wikipedia ↗

Text: Wikipedia, CC BY-SA 4.0

More in Flagstaff

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Written by our AI

Lowell ObservatoryMuseums & galleries·About 2h·Easy·Best at nightExperience the wonders of the universe at Lowell Observatory, where you can enjoy guided tours and stargazing through powerful telescopes.

Wupatki National MonumentWildlife & natureAncient sandstone pueblos—including the 100‑room Wupatki Pueblo—set in a high desert landscape northeast of town.

Sunset Crater Volcano National MonumentWildlife & natureA striking volcanic crater from a 1,000‑year‑old eruption, with walking trails across lava fields north of Flagstaff.

Museum of Northern ArizonaMuseums & galleries·About 2h·Easy·Any timeThe Museum of Northern Arizona offers a deep dive into the cultural and natural history of the Colorado Plateau, featuring artifacts and exhibits that span thousands of years.

The Arboretum at FlagstaffWildlife & nature·About 2h·Easy·Best at middayThe Arboretum at Flagstaff is a serene escape featuring native high-elevation plants and diverse wildlife, perfect for leisurely exploration.

Grand FallsAttractions & monumentsA seasonal waterfall northeast of Flagstaff that flows after monsoon rains—a dramatic natural feature off the beaten path.

Durations, effort and best times are our AI's estimates.

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Sources and credits

Names, place details, opening times and addresses © OpenStreetMap contributors, available under the Open Database Licence.

Text: Wikipedia, CC BY-SA 4.0.

Photo: Lava River Cave Arizona-interior view by Dave Bunnell, CC BY-SA 4.0, via Wikimedia Commons.

Descriptions, themes and estimates are written by Journey Builder's AI.