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Routes
Hiking trails & Routes
United States
Oregon
Deschutes County

Hidden Forest and Arnold Ice Cave Trail

Easy

3.2

(5)

85

hikers

Hidden Forest and Arnold Ice Cave Trail

00:19

1.21km

10m

Hiking

Explore an easy 0.8-mile hike in Deschutes National Forest, featuring ponderosa pines, lava outcroppings, and the unique Arnold Ice Cave.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Waypoints

A

Start point

Cave Entrance

Get Directions

498 m

Hidden Forest Cave

Cave Entrance

B

1.21 km

End point

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Way Types & Surfaces

Way Types

620 m

590 m

Surfaces

977 m

184 m

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Elevation

Elevation

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Weather

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Today

Monday 18 May

16°C

-1°C

0 %

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Max wind speed: 21.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the overall difficulty and length of this trail?

This specific komoot route, named the Hidden Forest and Arnold Ice Cave Trail, is considered easy. It is approximately 1.2 kilometers (0.75 miles) long and takes about 19 minutes to complete, with minimal elevation gain.

Is this trail suitable for beginners or families with children?

Yes, given its short distance, easy difficulty, and minimal elevation gain, this route is well-suited for beginners and families looking for a quick and accessible outdoor experience.

What kind of terrain can I expect on the route?

The trail traverses ponderosa pine forests and features interesting lava outcroppings. While the komoot route is short, the broader area of the Arnold Ice Cave Trail often has a narrow tread with bunchgrass, sagebrush, and hidden rocks, including some rocky sections.

What are the main natural features or landmarks along the way?

The primary highlight of the area is the Arnold Ice Cave, a lava tube system known for its year-round ice formations, including frozen stalagmites. The surrounding landscape also includes ponderosa pine forests and lava outcroppings.

What is the best time of year to hike this trail?

Clear days in spring and early summer offer excellent views of the snow-capped Cascades. However, the Arnold Ice Cave itself maintains year-round ice, making it an interesting feature in any season, though access might vary with snow cover in winter.

Where can I park to access the trailhead?

Specific parking details for this exact komoot route are not provided, but trails in the Deschutes National Forest typically have designated parking areas near trailheads. It's advisable to check local forest service maps or signs upon arrival for the most accurate parking information.

Are dogs allowed on the trail?

Regulations for dogs in the Deschutes National Forest generally permit leashed dogs on trails. However, specific rules can vary, especially near sensitive areas like caves. Always keep your dog on a leash and practice Leave No Trace principles.

Do I need a permit or is there an entrance fee for the Deschutes National Forest?

While there isn't typically an entrance fee for the Deschutes National Forest itself, some specific recreation sites or trailheads may require a day-use fee or a Northwest Forest Pass. It's best to check the official Deschutes National Forest website for current requirements before your visit, especially if you plan to park at a developed trailhead.

Does this trail intersect with other paths?

Yes, this route utilizes sections of several official trails. It follows parts of the Swamp Wells Road, the National Forest Development Road 1800-300, and the Arnold Ice Cave Trail Number 63.

What should I bring for a hike on this trail?

Even for a short, easy hike, it's wise to bring water, appropriate footwear for potentially rocky or uneven terrain, and layers of clothing. If you plan to explore the ice cave, a headlamp or flashlight is essential, and a jacket is recommended due to the cold temperatures inside.

Are there any other caves or points of interest nearby?

Yes, the area around Arnold Ice Cave is part of a larger lava tube system. Other nearby lava caves include Charcoal Cave and Boyd Cave, which were formed when the roofs of underground lava tubes collapsed. These caves were historically used to harvest ice and are known to have ancient Native American artifacts.

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