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Old Timberline Trail

Western Australia

3 based on 1 reviews
Location: 97km south of Bunbury
Length: 20 km
Surface: Coarse gravel, Compacted earth
Start / End: Nannup Foreshore Park to Cambray Siding
Public Transport: Coach
Suitable for:
  • Cycling – Mountain BikesCycling – Mountain Bikes
  • WalkingWalking

Map Legend:

  • Rail Trail
  • On Road
  • Potential Rail Trail
  • Other Trail
  • former Railway
  • A scenic and adventurous hybrid cross-country/rail trail experience that takes walkers and cyclists from Nannup Foreshore Park into St Johns Brook Conservation Park. Passing Workmans and Barrabup Pools, there is an overnight hut and campsite at Sleeper Hewers Hut
  • Can be combined with part of the Sidings Rail Trail to form a comfortable day-long loop to Nannup

Nearby Attractions

  • Spectacular swimming holes at Workmans and Barrabup Pools
  • The impressive rail bridge over Blackwood River
  • Views of the ‘flood tree’ that marks major flood events along the river
  • Riding and walking through stands of mature jarrah forest and along St Johns Brook
  • wildflowers, particularly in late spring
  • Overnight camping at Sleeper Hewers Hut, previously used by forestry workers cutting railway sleepers

Last updated: 6 October 2021

Nannup Foreshore Park to Cambray Siding

The trail starts at Nannup Foreshore Park, crossing the old railway bridge across Blackwood River. Across the bridge, the trail diverges from the Munda Biddi Trail and Sidings Rail Trail as it heads west through jarrah forest.

The forest becomes increasingly lush as the trail approaches Workmans Pool then continues along St Johns Brook to a picnic spot at Barrabup Pool.

Across the brook the trail follows a longer stretch of rail form before descending steep and gravelly sections of singletrack toward the Sleeper Hewers Hut campsite, then remains on rail form to the trail’s end at Cambray Siding. Trail users can return to Nannup by retracing their steps or returning via Sidings Rail Trail.

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One review of “Old Timberline Trail”

I think WA really needs to take a look at the Victorian rail trails. This is a single track, signage in Nannie pretty much non existent. Really disappointed. Drove out to one of the sliding sand nothing in site from days gone by, no old signs or even the old sliding! Really disappointed

Background Information

Traditional owners

We acknowledge the Bibbulman people, the traditional custodians of the land and waterways on which the rail trail is built.

Development and future of the rail trail 

The Old Timberline Trail is complete but future development is earmarked for the Sidings Rail Trail, the main line of the old train and tram network.

Rail line history 

The Nannup Branch Railway from Wonnerup to Jarrahwood was completed in 1898 by the Jarrah Wood and Saw Mills Company to transfer timber from their lease to the port of Busselton. The line operated until 1903 and was bought by WA Government Railways in 1907.

The line was completed to Nannup via Cambray Siding in 1909. The Kauri Timber Company built a connecting tramway to Cambray Siding to serve Barrabup Mill on the banks of St Johns Brook. This tramway operated until a new mill was established in Nannup in 1925, when the Barrabup Mill and timber town closed. The Old Timberline Trail follows the form of the Kauri Timber Company’s old tramway, while the section of the Nannup Branch Railway from Jarrahwood to Nannup forms the Sidings Rail Trail.


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