Mount Gorrie Walk (Walk #9)


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On this page:  

1) Walk map - Shows route and waypoint locations

2) Photo from walk  (also see Photo Galleries)

3) 3D map view

4) Google map & Satellite imagery

5) Route profile

6) Walk description

7) Waypoint listing and grid references


 Walk map  Photo
Click on map for large version.

Wandoo and balgas with Mount Gorrie behind

(from south of Helena River), Sept. 2004.

Click on photo for larger version.

More photos.

       3D map view




  Google Map

Using this map.



 Additional Satellite Imagery

Click here

for larger frame Google Maps image

of the walk area.

-Use zoom bar

for road details.

For Google Earth users

Step 1: Left Click here

For fly-in to waypoints and route

 on image of the walk area.

Or Right Click to

 "Save Target/Link As..."  kml file.

Step 2: Left Click here

For fly-in to 3D view

 of the walk area.

Or Right Click to

 "Save Target/Link As..."  kml file.

Hint: For enhanced 3D effect, set 'Elevation Exaggeration'

in Google Earth to "3" (via 'Tools' menu, 'Options' & 'View' tab).


          Route profile



 Walk description  
Location :

Approx. 50 kms east of Perth along Great Eastern  Highway to Flynn Road turnoff (on right approx. 2km before The Lakes) then further 6 kms down Flynn Road (good condition dirt road).

Length :

17 kms (95% off-track)

Degree of difficulty :

MEDIUM   (What does this mean?)

Amount of uphill walking :

440m (cumulative ascent)

GPS-preferred :


Access  :

See Google Map for start point on road map.

(Use zoom ladder for detail. Select 'Hybrid' to add satellite imagery.)

About 50m  before Flynn Road ends at Albercorn Road (on left), turn right down a dirt track for about 150m and park at 'START' point before the track crosses stream (Wariin Brook).

Important access issue:   Walkers need to be aware that this walk area and many others on WalkGPS lie within drinking water catchment areas. In 2007 DoW in effect recommended a prohibition of all traditional off-track bushwalking activities across the entire Perth region catchment areas covering 4500 sq km, far beyond the limits of  existing or proposed Reservoir Protection Zones (see map). By March 2008, the DoW had been persuaded to reconsider its published position. The new Policy of 2012 refrains from banning traditional bushwalking in the outer catchments. The community, including visitors to WalkGPS, need to remain vigilant to ensure that commonsense continues to prevail over regulatory zealotry. See also Home page: 'Access' and Related access issues on WalkGPS, and DOW's "Mundaring Weir Catchment Area Drinking Water Source Protection Plan" of 2007.

Escape route/s :

e.g. In north, follow Cavern Road NE to Flynn Road or SW to Gorrie Road (then 6.5km NNW on Gorrie Road to Great Eastern Hwy). In south, follow Wellbucket Road west, then north to cross Helena River and meet Gorrie Road (follow north).

Main features


Although this walk is almost entirely off-track, it involves mainly easy walking through open wandoo woodlands and some ‘kangaroo pasture-lands’ north and south of the Helena River, about 16 km upstream from Mundaring Weir. There are a few medium slopes, including some rocky outcrops with good views to Mount Yetar and of Mount Gorrie itself, and two crossings of the upper Helena River which in winter-spring may require getting feet/boots wet. 

Note:  This  area is unfortunately also very popular with off-road trail bike and quad bike riders despite being in the Jarrah Die-back 'Disease Risk Area' where non-permitted vehicle entry is prohibited. Hopefully the riders will be encouraged by DEC (and via The State Trail Bike Strategy of Dec. 2007 and the Recreational Trailbike Riders Association of WA (RTRA)) to find more appropriate legal areas for riding before too much more damage is done here. Meanwhile your walking may be disturbed by the whine of their bikes.

Controlled burns:  See DEC's indicative burn program.

Additional maps :

WalkGPS walk map for OziExplorer users A downloadable OziExplorer format MAP file (*.map) for this walk area is included on the Waypoint & Track Files page. The zipped folder also includes the associated 'base' topo map image file, plus other attached waypoints, tracks/routes, etc in OxiExplorer file formats.

WalkGPS reconnaissance history: Click here for a map of past WalkGPS test walks in the walk area, plus the final route. The final route was selected only after several visits to the area which aimed to achieve a walk that would be the most rewarding.

Other:    Mundaring 1:50,000 Sheet (Dept. of CALM, 1990);  or

Mundaring & Chidlow 1:50,000 DEC Conservation Operations Graphic (COG) map series (current) Sheet 2134-3 & 2134-2.

Other background references :

Some history - Mt Gorrie (often mispelt 'Gorry', even on some published maps) is named after the Gorrie family who ran the former "Malmalling" property from 1907 until 1953. The  "Malmalling" Homestead was located 1 km west of Mt Gorrie between the Helena River and Hancock Brook (see waypoint 'HMSTD' and map). Beef cattle were run on the land after 1953 but the Government later resumed the property. The old homestead was abandoned in 1968 and the surrounding farmland was soon after converted into the current pine plantation. The homestead was later destroyed by vandals and sadly even the stone wall ruins were then bulldozed into an ugly heap by Water Corp in about 2006 due to safety and public liability concerns. Two large oak trees planted behind the cottage in the early 1900's remain as reminders of the history of the site. See Mundaring & Hills Historical Society Spring 2005 Newsletter (p.6) for a good summary of the history of the Malmalling site.

Route notes :


From 'START' point follow the dirt road west across the Wariin Brook and after less than 200m at waypt '1' veer WNW off-track through open wandoo woodland to reach a stream course at waypt '2'. Then climb rapidly (still WNW) to a low rocky ridge then descend to a gentle gully before climbing again to reach another rocky ridge at '2A' . Climb the ridge toward the NNW through partly scrubby bush and sheoak forest (avoiding low, thick heath over much of the crestal area) to reach a rock outcrop at 'ROC1' with views SW across a small valley toward a larger rock outcrop ('BIGROC') on the other side. Continue NNW to cross Cavern Road at 'CAVRD.'  Veer NW through open wandoo woodland on the crest of the ridge before turning approx SW at waypt '3' to recross Cavern Road and a nearby small rock outcrop at 'ROC2'.  Continue SW downhill to cross another dirt road at waypt '4' in a sandy  valley. Then climb approx SW to reach the larger east-sloping granite outcrop at waypt 'BIGROC' with good views to Mount Yetar (8km ESE). Walk SSW along the outcrop and partly through sheoak forest to reach waypt '5'.  Then veer SE downhill to cross a stream gully at waypt '6' and then along a very gently sloping hillside  through open wandoo woodland to reach waypt '7'.  Then descend gently (partly through an understorey of abundant grass trees) to a broad, quite flat valley floor, before climbing to waypt '8' above a rock outcrop (on the west flank of Mount Gorrie ridge). Veer south to reach another outcrop at 'ROKNU' and soon after cross a dirt road running E-W. Continue approx. south to reach the Mount Gorrie ridge at waypt '8A'. At about this point the ridge is largely cleared of forest leaving grassy 'kangaroo-pastures' with views across the Helena River valley. Veer SSW to follow the ridge uphill partly through groves of large grass trees, to reach the summit of Mount Gorrie at 'MT' marked by a small cairn on a boulder. Descend from Mount Gorrie initially SW to meet a dirt road   at waypt '10'.  Follow the dirt road south until it becomes overgrown at about waypt '11', then veer SW again to soon cross a dirt road, then Helena River at waypt 'FORD'. (In a wet winter you can expect to get your boots/feet wet here.) Continue approx. SW for less than 100m to along meet at waypt '12' a dirt road which skirts the Wellbucket Pine Plantation. Follow the road SW for less than 200m to '12A'. Then veer SE to initially cross a gully then across flat forested ground to soon cross another dirt road. Continue SE and climb  steepening slope to reach waypt '13' near a rocky ridge. Veer more eastward toward the ridge top gaining (at 'VU') a good view back across the Helena River valley to Mount Gorrie. Continue eastward across the ridge top, then descend across a rocky slope to reach a broad lightly forested saddle approx. at waypt '14'. Turn NE to walk along the slope of the NW-sloping hillside via waypoints '14A' and '14B' mainly through open wandoo woodland and groves of grass trees. About 300m after '14C' after crossing a couple of steam gullies, the route climbs quite steeply  via '14D' to reach the ridge at approx. waypt. '15'. Veer approx. north down the ridge and reach an outcrop at 'BIGRK2' with views to the north. Continue north to waypt '15' then veer NE to descend to cross a stream gully at waypt '16'. Then veer to NNE again to cross two dirt roads and then the Helena River at waypt '17'. (In a wet winter you will probably have to get your boots/feet wet here also.) Then veer WNW to initially cross the Wariin Brook and adjacent open grassy flats before climbing toward a partly rocky spur-ridge near waypt '18'. Continue climbing westward, staying on the more open grassy areas along the southern side of the ridge to avoid  teh more rocky/pebbly ground along the ridge top. The slope flattens off onto the  lateritic  ridge top before reaching waypt '19'. Follow the eastern edge of the ridge via waypt '20' (with view to east) and cross the rocky crest of the ridge at  waypt '21'.  Finally descend to the NE (via '22') to regain the dirt road near the Start point. Turn right to follow the road back across Wariin Brook to the 'END'. 



 Waypoint listing


Right click here and then "Save Target/Link As..."  if you wish  to download the waypoints and GPS 'track' as a GPX  file in the standard format recognised by most devices and programs including Garmin and Magellan units and GPS Mapping Software.  If you have a problem uploading the data, please feel free to contact me directly at WalkGPS rather than your users' forum!

Also see WalkGPS Maps, Waypoints & Tracks page for downloadable MAP files, plus GPX and Google Earth (KMZ) files. Also see explanatory notes on file formats and how to upload to your unit.

If you require another format you will need to convert the downloaded file using GPS Visualiser (online) or freeware such as GPSBabel.

The waypoints in the alternative listing below are given as UTM coordinates with datum to match the Walk Map. NOTE: If you wish to manually enter these into your GPS unit you must first set your unit to the correct Datum. Caution: An incorrect datum can result in an approximate 200m location error! (This is a very slow, error-prone method compared to using the above downloadable file and is not recommended.)


Route list :

Projection : UTM       Datum : Australian Geodetic 1966       Zone :  50

Waypt name           Easting      Northing             Comments

START        438180  6467517    Park car just east of Wariin Brook.

1            438031  6467476    Leave dirt road to begin off-track.

2            437645  6467580    Cross sidestream.

2A           436927  6467678    On partly rocky ridge climbing to north.

ROC1         436679  6468419    Small rock outcrop.

CAVRD        436634  6468555    Cross Cavern Road.

3            436469  6468663    In wandoo woodland, on ridge.

ROC2         436387  6468484    Small outcrop just after re-crossing road.

4            436104  6468014    Cross old dirt road.

BIGROC       435944  6467902    Reach large outcrop with good views to east.

5            435822  6467508    On hillside, in forest.

6            436029  6467260    Cross stream gully.

7            436558  6466922    In forest.

8            436848  6466103    Rock outcrop.

ROKNU        436839  6465940    Rock outcrop.

8A           436878  6465480    On ridge.

MT           436670  6464730    Small rock cairn on Mount Gorrie summit.

10           436504  6464439    Meet old dirt road.

11           436532  6463996

FORD         436373  6463771    Cross Helena River.  

12           436309  6463750    Meet dirt road skirting pine plantation.   

12A          436220  6463611    Leave road.

13           436332  6463332    Near ridge climbing east. Good view to Mt Gorrie.

VU           436487  6463289    Grassed area, near ridge top. View to Mt Gorrie.

14           436728  6463248    In gentle saddle area.

14A          436852  6463437    On steepening NW-sloping hillside.

14B          437056  6463677    On steeper slope.

14C          437492  6464105    Near deeply incised stream gully.

14D          437626  6464603    On steep slope below ridge.

15           437759  6464794    On ridge, in forest.

BIGRK2       437805  6465150    On north-sloping outcrop.

15A          437774  6465255    On ridge.

16           437987  6465490    Cross small stream.

17           438100  6466116    Re-cross Helena River.

18           438021  6466274    On flank of rocky spur-ridge, climbing to west.

19           437427  6466354    On laterite-capped ridge.

20           437483  6466565    On edge of ridge with views to east.

21           437480  6466718    On rocky crest of ridge.

22           437881  6467082

END          438142  6467503    Back at Start point.


Additional waypoints on map :

HMSTD        435473  6464363    Location of former "Malmalling" homestead (1900-1968).


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This page was last updated  :   24 March, 2017

 Site authored by David Osborne.  Photographs and text are copyright  © 2003-2013 David Osborne.