MacKenzie River Bun-nah Trail
  • Length: 10.5km

  • Duration: 3hrs

  • Grade: 3

  • Style: One Way

  • Start: Wartook Valley

  • End: Zumsteins Picnic Area

  • Location: Grampians National Park

  • Closest Town: Horsham

  • Distance from CBD: 287km

  • State: VIC

  • Latitude: -37.0334523

  • Longitude: 142.3407343

Keep the Trail Access info current...

Camping Area
Drinking Water

Select items to indicate conditions for access to the trail.

2WD Access

4WD Access

Public Transport

Bitumen Road

Gravel Road

Steep Road

Winding Road

Speed Bumps

Vehicle Ford

Entry Fee

Large Car Park

Small Car Park

Accessible Parking

Accessible Toilet

Public Toilets

Drinking Water

Untreated Water

Picnic Shelter

Picnic Table

BBQ Facilities

Campfire Pit

Camping Area

Keep the Trail Features current...

Overnight Campsites
Steep Terrain
Bush Bashing

Grampians National Park...

Select items to indicate features found along the trail.

Concrete Path

Timber Boardwalk

Gravel Path

Sandy Trail

Rough Trail

Undefined Trail

Prams & Strollers

Manual Wheelchair

Motorised Wheelchair

Bicycle Trail

Mountain Bike Trail

Historic Rail Trail

Dog Friendly

Urban Walk

Coast & Beach

Historic Lighthouse

Waterfalls & Lakes

Rainforest Walk

Goldfields & Mining

Heritage Walk

Aboriginal Art

Alpine Region

Alpine Huts

Exposed Ledges

Rock Scrambling

Steep Terrain

Bush Bashing

River Crossings

Scenic Viewpoints

Well Marked

Drinking Water

Untreated Water

Fishing Spots

Swimming Spots

Overnight Campsites

Trail Running

Horse Riding


The MacKenzie River / Bun-nah Trail is a 10.5km, grade 3 one way hike located in the Grampians National Park Victoria. The hike stretches between Wartook Valley and Zumsteins Picnic Area and should take approximately 3hrs to complete.

Hike Summary

The Mackenzie River/Bun-nah Trail is a historic route that stretches for 10.5km between Wartook Valley and Zumsteins Picnic Area. You can walk in either direction but my recommendation is to start at Wartook Valley as from Zumsteins walkers can continue on the Mackenzie River Trail for another 3.7km to Mackenzie Falls.

Originally known as the 'Back Track', the trail closely follows the Mackenzie River, or Bun-nah as it is known to the Traditional Owners. Along the route there are interpretive signs that detail the area's history and its significance to the Jadawadjali People. The trail is open to walkers and mountain bikers when conditions are dry. Download the brochure here.


For 100 years, the 'Back Track' was the main road from Wartook Valley into the Central Grampians Ranges. The Back Track was traversed by walkers, horses, carriages and bullock wagon teams. The track was used to transport supplies, animals, timber from mills, tannin bark from wattle stripping and honey and beeswax collected by local beekeepers. Bun-nah (Mackenzie River) runs through Jadawadjali country, from the northern part of Gariwerd down through the plains to its confluence with Walla Walla (the Wimmera River) at Horsham. Both rivers form a key part of the Gariwerd Creation story. As you follow the track along Bun-nah, you are following the creation story of Tyingal (Tchingal) the emu and Waa the crow.

About the region

Renowned for rugged mountain ranges, rich cultural heritage and breathtaking scenic views, the 168,000 hectare park is ideal for a wide range of outdoor activities. The many walking tracks will take you on a journey to waterfall vistas, ancient geological rock features and forests. There are guided tours, and with a large network of roads available, car touring is a great way to explore. Renowned as the major attraction in the region, the Grampians National Park is a must-visit destination for all travellers, backpackers and day-trippers in Victoria. The spectacular setting of the mountainous landscape boasts a wide array of attractions and activities for visitors to the region. The Grampians National Park (also Gariwerd), commonly referred to as The Grampians, is a national park located in the Grampians region of Victoria, Australia. The 167,219-hectare (413,210-acre) national park is situated between Stawell and Horsham on the Western Highway and Dunkeld on the Glenelg Highway, 260 kilometres west of Melbourne and 460 kilometres east of Adelaide.

Getting there

Wartook Valley runs along the Grampians' western foothills, giving a completely different perspective of the mountains. Heading to or from Horsham, this is the scenic alternative to the Western Hwy (A8). From Wartook, the sealed Roses Gap Rd and Mount Victoria Rd pass through the park, and there are lots of unsealed roads and tracks passing little creeks, waterfalls and idyllic picnic spots.

This trail reopened in 2018 so the GPX file may not be completely aligned with the newly aligned trail.


At times the Mackenzie River floods and the trail is impassable; in this instance it is best to access the trail at Cooinda Burrong.

GPX File

Total distance: 10497 m
Max elevation: 289 m
Min elevation: 201 m
Total climbing: 150 m
Total descent: -115 m
Download GPX File

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