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Ada County

Eagle

Eagle Island State Park Loop

Routes

Hiking trails & Routes

Ada County

Eagle

Eagle Island State Park Loop

Easy

hikers

Eagle Island State Park Loop

Q: How long does it typically take to hike the Eagle Island State Park Loop?

The Eagle Island State Park Loop is an easy hike, approximately 6.5 km (4 miles) long. Most hikers can complete it in about 1 hour and 38 minutes, making it a great option for a leisurely outing.

Q: Is the Eagle Island State Park Loop suitable for beginners or families with children?

Yes, this loop is very suitable for beginners and families. It features generally flat, even terrain and is graded as easy , making it accessible for all fitness levels. The park itself is also very family-friendly, with various activities beyond hiking.

Q: What is the terrain like on the Eagle Island State Park Loop?

The terrain is primarily flat and even, winding through grassy meadows and open fields. A significant portion follows the Boise River, offering picturesque riverside views. While some trails in the park might have slightly uneven ground, the loop itself is largely obstacle-free.

Q: What kind of scenery can I expect along the trail?

You can expect diverse scenery, including open fields, grassy meadows, and extensive views along the Boise River's north and south channels. There are also views of a recreational lake. During spring, wildflowers bloom, and autumn brings vibrant foliage. The park is also known for its beautiful light during golden hour, perfect for photography.

Q: What notable features or landmarks will I see on the Eagle Island State Park Loop?

As you traverse the loop, you'll pass by the main area of Eagle Island State Park itself. You might also spot the Old Dam , a fish hatchery, the site of an old slaughterhouse, and the Osprey Group Picnic Area.

Q: When is the best time of year to hike the Eagle Island State Park Loop?

The trail is enjoyable year-round. Spring offers blooming wildflowers, and autumn provides vibrant foliage. The park is also known for its beautiful light during golden hour, making it a favorite for photography. It's a great option for a pleasant walk in any season.

Q: What wildlife might I encounter on the trail?

The park is listed as an important bird area, so you can expect to see various bird species. Other wildlife common to riverside and meadow environments may also be present.

Q: Where can I park when visiting Eagle Island State Park Loop?

Parking is available within Eagle Island State Park. The park has designated parking areas that provide convenient access to the trailheads. For specific directions, it's best to check the official park website.

Q: Are there any entrance fees or permits required for Eagle Island State Park?

Yes, there is an entrance fee to access Eagle Island State Park. You can find detailed information about current fees and any required permits on the official Idaho State Parks website at idaho.gov .

Q: Is the Eagle Island State Park Loop dog-friendly?

Yes, the park is highly favored by dog owners. Dogs are welcome on the trails, and there are designated areas within the park for off-leash play, making it an excellent spot for you and your canine companion.

01:38

6.52km

10m

Hiking

The Eagle Island State Park Loop offers a delightful and accessible outdoor experience, guiding you through a blend of open fields and tranquil riverside paths. You'll find yourself walking alongside the Boise River, with opportunities to spot local wildlife and enjoy the natural beauty of the park. The trail's flat terrain and minimal elevation make it a perfect choice for a relaxed outing, especially during the vibrant autumn season when fall colors enhance the scenery.

Planning your visit is straightforward, with the park located conveniently between the north and south channels of the Boise River, ensuring easy access and parking. This easy 4.1-mile (6.5 km) hiking loop, with only 17 feet (5 metres) of elevation gain, typically takes about 1 hour and 38 minutes to complete. It's an excellent option for families or anyone seeking a gentle, scenic walk without significant challenges.

What makes this trail particularly notable is its location within Eagle Island State Park, an important bird area recognized by the National Audubon Society. Keep an eye out for Wood Ducks, Belted Kingfishers, and Great Blue Herons. The park also boasts a rich history, having once been a penitentiary farm before becoming a state park, and offers a wide array of recreational activities beyond hiking, including swimming and disc golf, making it a versatile destination for a day trip.

Last updated: June 9, 2026

Waypoints

Start point

Parking

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115 m

Eagle Island State Park

Highlight • Trail

Eagle Island State Park is nestled between two arms of the Boise River just outside of Eagle, ID. This is a great place to bring the family for hiking, swimming, picnicking etc. There is a daily entrance fee, but if you visit often or are a local you can get an annual pass.

Tip by

1.82 km

Old Dam

Highlight • Structure

The old dam across the river makes for an interesting stop, but the water can be deceptive so take caution. There are some dead end trails in the area so keep your maps handy.

Tip by

6.52 km

End point

Parking

Way Types & Surfaces

Way Types

5.33 km

611 m

563 m

Surfaces

3.95 km

2.11 km

397 m

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Weather

Today

Saturday 11 July

39°C

16°C

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Frequently Asked Questions

How long does it typically take to hike the Eagle Island State Park Loop?

The Eagle Island State Park Loop is an easy hike, approximately 6.5 km (4 miles) long. Most hikers can complete it in about 1 hour and 38 minutes, making it a great option for a leisurely outing.

Is the Eagle Island State Park Loop suitable for beginners or families with children?

Yes, this loop is very suitable for beginners and families. It features generally flat, even terrain and is graded as easy, making it accessible for all fitness levels. The park itself is also very family-friendly, with various activities beyond hiking.

What is the terrain like on the Eagle Island State Park Loop?

The terrain is primarily flat and even, winding through grassy meadows and open fields. A significant portion follows the Boise River, offering picturesque riverside views. While some trails in the park might have slightly uneven ground, the loop itself is largely obstacle-free.

What kind of scenery can I expect along the trail?

You can expect diverse scenery, including open fields, grassy meadows, and extensive views along the Boise River's north and south channels. There are also views of a recreational lake. During spring, wildflowers bloom, and autumn brings vibrant foliage. The park is also known for its beautiful light during golden hour, perfect for photography.

What notable features or landmarks will I see on the Eagle Island State Park Loop?

As you traverse the loop, you'll pass by the main area of Eagle Island State Park itself. You might also spot the Old Dam, a fish hatchery, the site of an old slaughterhouse, and the Osprey Group Picnic Area.

When is the best time of year to hike the Eagle Island State Park Loop?

The trail is enjoyable year-round. Spring offers blooming wildflowers, and autumn provides vibrant foliage. The park is also known for its beautiful light during golden hour, making it a favorite for photography. It's a great option for a pleasant walk in any season.

What wildlife might I encounter on the trail?

The park is listed as an important bird area, so you can expect to see various bird species. Other wildlife common to riverside and meadow environments may also be present.

Where can I park when visiting Eagle Island State Park Loop?

Parking is available within Eagle Island State Park. The park has designated parking areas that provide convenient access to the trailheads. For specific directions, it's best to check the official park website.

Are there any entrance fees or permits required for Eagle Island State Park?

Yes, there is an entrance fee to access Eagle Island State Park. You can find detailed information about current fees and any required permits on the official Idaho State Parks website at idaho.gov.

Is the Eagle Island State Park Loop dog-friendly?

Yes, the park is highly favored by dog owners. Dogs are welcome on the trails, and there are designated areas within the park for off-leash play, making it an excellent spot for you and your canine companion.

Can I bike or horseback ride on the trails at Eagle Island State Park?

Absolutely! The trails within Eagle Island State Park are versatile and shared by hikers, bikers, and horseback riders. This allows for a diverse outdoor experience, catering to various interests beyond just hiking.