This trail is not suitable for walking in wet and windy conditions. It is essential to remain on the designated path at all times. Be prepared for sudden temperature drops and the possibility of rain or hail. The trail features a rough surface with very steep hills and extensive rock hopping. Directional signage may be limited, so bushwalking experience, navigation skills, emergency first aid knowledge, and a high level of fitness are necessary for a safe hiking experience.
Mt Trio is a 3.5-kilometre, grade 4 hike located in Stirling Range National Park, Western Australia, typically taking around 1.5 hours to complete. This short yet steep hike features a total ascent of 400 metres and includes numerous steps along the trail. The walk showcases an array of wildflowers, particularly the endemic mountain bells, which enhance the natural beauty of the area.
Mt Trio consists of three distinct peaks and was formerly known by its Aboriginal name, Warrungup, meaning "three become." The trail begins steeply from the parking area, leading hikers up many steps to a saddle situated between the eastern and northern peaks. From this point, the track continues with a more gradual ascent to the highest peak, reaching an elevation of 856 metres. Clear weather conditions provide excellent views from the summit.
The Stirling Ranges are home to over 1,500 species of flowering plants, which represent nearly 40 percent of the known flora in the southwest region. Approximately 80 species are unique to this area, making it a significant ecological site. Mt Trio is particularly renowned for its striking bright red mountain bell, Darwinia lejostyla.
- Standard park entry fees apply for Stirling Range National Park.
- The Stirling Range experiences unpredictable weather. Hikers should be aware of the possibility of sudden temperature drops, rain, or hail.
- Hikers planning to venture off marked trails, abseil, or rock climb should register at the shelter across from the Bluff Knoll Road entry station picnic area. This helps park rangers be aware of your location in case of emergencies.
Total distance: 3535 m
Max elevation: 800 m
Min elevation: 430 m
Total climbing: 411 m
Total descent: -414 m
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To reach the trailhead for Mt Trio, travel south from Perth along Albany Highway (State Route 30) for approximately 400 kilometres. Take the exit onto Formby South Road, which leads into Stirling Range National Park. Continue on Formby South Road until reaching the designated parking area for the Mt Trio hike. This journey typically takes around five hours, offering a scenic drive through the picturesque landscapes of Western Australia.
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A quick note: Uploading your photos doesn’t mean you lose ownership. You’ll be credited for any photos you share, and you can request to have them removed at any time.
Grade 4 (Hard) -
Challenging Walks for Experienced Walkers: Grade 4 on the
AWTGS signifies challenging walking tracks. Bushwalking experience is recommended for these tracks, which may be long, rough, and very steep. Directional signage may be limited, requiring a good sense of navigation. These walks are suited for experienced walkers who are comfortable with steeper inclines, rougher terrain, and potentially longer distances.
Stirling Range National Park is home to the only significant mountain range in the southern region of Western Australia, with peaks exceeding 1,000 metres above sea level. This unique landscape provides a challenging and spectacular hiking experience. The Aboriginal name for the range, Koi Kyenunu-ruff, translates to ‘mist rolling around the mountains,’ a phenomenon that frequently occurs in the area.
During spring and early summer, the ranges come alive with an abundance of wildflowers and birdlife, which can be observed from various hiking trails, lookouts, and picnic areas throughout the park. For those who prefer not to hike, a 42-kilometre scenic drive on mostly unsealed, graded roads winds through the heart of the park, offering numerous stops along the way.
Accommodation options include the Stirling Range Retreat and the Mount Trio Bush Camping and Caravan Park, both situated on the northern boundary of the park. Bluff Knoll, known as Bular Mial, holds cultural significance for the Minang and Goreng people, and informative signage at the Eastern Lookout shares valuable insights and stories about the area.
The peaks of the Stirling Range are prone to rapid and unpredictable weather changes, so hikers must be prepared for sudden cool changes that can bring temperature drops, rain, or hail. All visitors are strongly advised to avoid entering the bush or using footpaths during days of extreme fire danger. Those planning to hike off marked trails, as well as those intending to abseil or rock climb, should register their details at the shelter located in the picnic area across from the Bluff Knoll Road entry station. Registration is not required for those hiking established trails.
Recognition and acknowledgement are given to the Goreng and Menang people as the Traditional Owners of Stirling Range National Park.
Spotted a change on this trail? Maybe there are new features, the route has shifted, or the trail is permanently closed. Whatever the update, I’d love your input. Your feedback helps fellow hikers stay informed and ensures that our trail info stays fresh and reliable.
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Adventure with Confidence: Register Your Trip Plans
Before you hit the trail, take a moment to fill out our trip intentions form. It’s a simple way to share important details about your hike with family or friends. If things don’t go as planned and you’re not back on time, they can easily notify emergency services, helping to ensure a quick response and reducing worry. Enjoy your outdoor adventure knowing that you’ve taken a smart step for your safety.
What you carry in your pack will depend on the weather, terrain, time of year, type of adventure, and personal preferences. Having trouble deciding what gear’s right for you? My free planning, food and packing checklists provide an introduction to things your could consider (as well as the Ten Essentials) on your day, overnight and multi-day adventures. Customise your kit according to your personal needs, always considering safety first.Â
While planning your hike, it’s important to check official government sources for updated information, temporary closures and trail access requirements. Before hitting the trail, check local weather and bushfire advice for planned burns and bushfire warnings and let someone know before you go. Plan ahead and hike safely.
