Donaldson Cave – Spring Mill State Park loop from Spring Mill State Park

If you're looking for an easy, high-reward hike that packs a lot of natural beauty and history into a short distance, the Donaldson Cave – Spring Mill State Park loop from Spring Mill State Park is definitely worth your time. This easy hiking route covers 2.1 miles (3.5 km) with a gentle 191 feet (58 metres) of elevation gain, taking about 57 minutes to complete. It's perfect for a quick exploration of Spring Mill State Park's unique terrain and popular trails.

What to expect on Donaldson Cave – Spring Mill State Park loop from Spring Mill State Park

As you follow the trail, you'll journey through dense woodlands, including the ancient trees of the Donaldson Woods Nature Preserve. The terrain showcases the park's unique karst topography, with limestone formations and sinkholes. A major highlight is the dramatic entrance of Donaldson Cave, where cool water emerges. You'll also pass historical markers like the Wilson Monument and Hamer Cemetery, and even an old limestone quarry. While rated easy, be aware of uneven ground, exposed roots, and rocks, especially if it's wet. This route is ideal for families and anyone wanting a diverse nature and history walk without a strenuous climb.

Planning your visit

Parking for the Donaldson Cave loop is available within Spring Mill State Park. The park is a popular destination, so arriving earlier in the day is always a good idea, especially on weekends, to secure a spot. There are no specific permits or timed-entry systems mentioned for this particular trail, but always check the Spring Mill State Park website for any general park entry fees or seasonal considerations before your visit. The trail is enjoyable in most seasons, offering different charms from lush summer greenery to vibrant fall colors.

Trail details

• Distance: 2.1 miles (3.5 km)
• Elevation gain: 191 feet (58 metres)
• Difficulty: easy
• Estimated time: 57 minutes