Geddes Rock Walk  (Walk #28)


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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.

View WNW across rock pool on Geddes Rock to northern ridge of Mt. Cooke (6.5 kms) and distant Mt. Cuthbert (11 kms), May 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 :

69 kms SE of Perth. 

Length :

16.5 field kms (70% off-track).

Degree of difficulty :

MEDIUM   (What does this mean?)

Amount of uphill walking :

320m (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.)

Follow Brookton Highway from Albany Highway for 47 kms, then turn right into Metro Road (first road on right after Christmas Tree well and Yarra Road on left), then drive 14.5 km down Metro Road (gravel road, usually in good condition), then turn right into McCallum Road (good dirt road) and follow McCallum Road (and part Watershed Rd) for 4 kms.  Park at the Start point at the Randall Road turnoff which is marked by a white gate and a CALM 'No Entry' Notice (signifying the boundary of the Die-back Disease Risk/Quarantine area).

Alternative Start point : Depending on personal preference, you can drive up to 2.25 kms further south on Watershed Road to an alternative Start point as far south as waypoint '3'.  The alternative Start point simply means you will have a 2.25 kms on-road walk (or less) at the end of the walk rather than at the start.

Access off Albany Highway? :  Millars Log Road provides potential summer access  into the area (approx. 16 kms) off Albany Highway (turnoff on left just past Sullivan Rock), but entry via this route is through the Die-back Disease Risk (Quarantine) Area and requires a special vehicle access permit from DEC which is difficult to obtain and in any event won't be granted for the wetter months (approx. May-November. i.e. the best walking period).  Also the 'road' is really a bush-track and best suited to 4WD vehicles.

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 "Canning River Catchment Area Drinking Water Source Protection Plan" of 2007.  

Escape route/s :

In east, head east back to Watershed Road and then north to Start point. In SW, head south to Millars Log Road (dirt road), and follow eastward to Watershed Road. In northern area of Geddes Rock, head NW to meet Millars Road, then NE to meet Randall road and follow east back to Start point.  

Main features


This walk features a visit to the Geddes Rock monadnock (elevation approx. 450m) located 6.5 kms NE of Mount Cooke (elevation 582m).  There are some excellent views  from Geddes Rock of Mount Cooke and other high points in the Darling Range including distant  Mt. Dale (29 kms to NNW; elevation 546m), and also views of Geddes Rock monadnock itself from other vantage points on granite outcrops to the east.  The forest is mainly jarrah with some marri and occasional patches of  wandoo.  The terrain is mainly gentle.  Expect a few short sections of scratchy heath around the outcrops.

Controlled burns:  See DEC's Indicative Burn Plans.

Additional maps :

WalkGPS walk map for OziExplorer users A downloadable OziExplorer format MAP file (*.map) for this walk area is included on the Maps, Waypoints & 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 routes. 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:  Jarrahdale 1:50,000 Sheet (Dept. of CALM, 1990);

or Jarrahdale & Yaganing 1:50,000 DEC Conservation Operations Graphic (COG) map series (current) Sheet 2133-3 & 2133-2.

Other background references : "Worsley Bauxite mining expansion Environmental Review and Management Programme (ERMP)" by Worsley Alumina Pty Ltd, May 2005.  Released May 2005 by the EPA.  Public submissions closed August 2005 and W.A.'s EPA gave final environmental approval of the expansion plan in February 2008. The mining area expansion within the extensive existing lease will eventually impact on an area immediately east of this walk area. It is possible that public access via Metro and McCallum Roads will also eventually be restricted due to future mining operations. (Worsley is 86% owned by BHP Billiton). - For information on the future impact on walk areas see WalkGPS submission to EPA (5MB pdf). See also Related land-use issues on WalkGPS. 
Route notes :


Follow Watershed Road south for 2.25 kms (via waypoints '1A' and '2') to '3', then leave the road to veer approx. SW and off-track for 200m through the forest to the edge of a granite outcrop (at approx. '4'). Head WSW across the outcrop (views to Geddes Rock) and at '5'  veer northward along the outcrop to '5A' which provides an easy way around the rock ledge along the lower edge of the outcrop. Then veer SW through shrubland to soon cross a small stream gully and soon enter forest.  At '6' veer west and after about 250m cross a stream gully.  Continue west (via '6A'), in mainly very open forest, crossing a stream course after almost 1 km and then reaching a road junction (at '7').  Follow the dirt road which heads gently uphill initially toward the SW.  Continue on the road (via '8' and '9') climbing more steeply to cross a ridge and then descend to reach a T-junction (at '10'). Turn left to follow a road south for about 250m, then veer approx. SW to climb gently uphill and off-track to reach a ridge from where the southern granite slopes of Geddes Rock come into view (at about '12'). Descend a short steepish slope to reach the outcrop and head westward up the granite slope to '13' near the top of the outcrop and the edge of the forested summit ridge. Then veer NW to follow the upper edge of the outcrop to '13A' gaining good views across the Darling Range, including to distant Mount Dale (546m), 29 kms NNW  (The actual summit area of Geddes Rock, elevation approx. 450m, is less than 100m off the route at this point, but is forested and offers less views.)   Then veer more westward to climb gently through partly forested and rocky terrain across and along the Geddes Rock ridge for 500m to '14' where there are views through wandoo trees and shrubs to Mount Cooke (582m) about 6.5 kms to the SW.  Veer northward for about 100m (to '14A') and then NW for about 500m, staying close to the rocky and forested ridge.  Then emerge onto an extensive granite outcrop at the northern end of the ridge (at about '15'). There are nearby excellent open views across the Darling Range, and especially good views to Mount Cooke and the more distant (11 kms) Mount Cuthbert (elevation approx. 500m).  Pools of water collect on the rock in the wetter months and wedge-tailed eagles often soar overhead (I have counted up to 11 at one time, grouping to investigate the potential passing prey. -Eagles are afraid of humans, but have been known to attack and kill animals as large as adult kangaroos! See also 'Fact Sheet'). Head northward down the outcrop and into a narrow belt of light forest and heath to '16'.  Then veer NW  to descend again onto outcrop (at about '17').  Then veer approx. SW-ward to cross a band of heath on the ridge and reach (at '17A') another extensive area of granite outcrop on the west flank of Geddes Rock, again with good views to Mt Cooke etc.  Head north along the outcrop for a short distance (to '17B') and then veer eastward to head down the steepening northeastern granite slope through patches of shrubs (Calothamnus sp.) for about 200m. Then veer north for a short distance to near the foot of the granite slope (at '18A') where a small stream flows over the granite then disappears into a gully beneath the forest. Then veer NE to re-enter the forest and cross  a stream gully after about 600m and soon after cross an old dirt road (at '19'). Continue NE, initially climbing quite steeply through a local wandoo woodland to cross a narrow ridge. Continue NE (via '20') and meet a dirt road (just before '21') and follow it northward  up a steep hillside to near the crest.  At '21A' veer SE and off-track to cross a granite outcrop which provides good views back to Geddes Rock, less than 2 kms SW. Continue SE back into open jarrah forest.  At '22' veer NE and after about 750m re-cross a dirt road (crossed at '7' earlier).  Then veer due east and very soon cross a stream course and after about 500m another stream course.  Continue due east for a further 700m (to '23') then veer ESE to follow a stream course through heath to a low outcrop at '23A'. Then continue east and gently uphill to reach open patchy shrubland near the lower edge of a granite outcrop (at '24'). Then veer approx. north through shrubland to reach the outcrop and continue (via '24A', '24B' and '25') to gently climb across the slope of the outcrop and through occasional patches of shrubland, gaining views back to the summit ridges of Geddes Rock and Mount Cooke (though the lower slopes are concealed by the intervening ridge).  Reach the uphill  limit of the outcrop at  about '26', then veer NE to very soon meet a dirt road. Turn right to follow the road downhill back to the Start point.



 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       444598  6419414  Start point at cnr. Watershed and Randall Rds.

1A          445007  6418631  On Watershed Road.

2           445612  6417962  On Watershed Road.

3           445747  6417512  On Watershed Road.

4           445646  6417331  Near edge of granite outcrop.

5           445335  6417255  On granite outcrop.

5A          445283  6417398  On granite outcrop.

6           444925  6416863  In mixed forest.

6A          444542  6416813  Just south of stream gully.

7           443311  6416858  Meet road junction (dirt roads).  

8           442972  6416538  On dirt road.

9           442452  6416668  On dirt road.

10          441931  6416213  Meet road T-junction.

11          441971  6415973  On rough dirt road.

12          441820  6415670  On ridge, close to Geddes Rock outcrop.

13          441658  6415653  Near top of granite slope.   

13A         441482  6415842  Near top of granite slope.

14          440983  6415960  In wandoo and shrubland just west of ridge.

14A         441004  6416095  On forested rocky ridge.     

15          440750  6416465  On large granite outcrop.

16          440757  6416583  In shrubland/heath near edge of outcrop. 

17          440672  6416688  On granite outcrop.

17A         440544  6416642  On granite outcrop.

17B         440513  6416793  On granite outcrop.

18          440739  6416831  On sloping outcrop/shrubland.

18A         440743  6416903  Near stream course near foot of granite slope.

19          441315  6417189  Cross old road.

20          441518  6417412  Meet dirt road.

21          441712  6417699  On dirt road. (Ignore old turnoff to right.)

21A         441697  6418057  On dirt road, near crest of hill.

22          441988  6417897  In forest, on gentle ridge sloping east.

22A         442568  6418314  Cross dirt road.

23          443931  6418323  In forest.

23A         444068  6418290  Reach low outcrop.

24          444587  6418332  In patchy shrubland near lower edge of outcrop.

24A         444615  6418593  On outcrop.

24B         444503  6418791  On outcrop.

25          444554  6418871  On outcrop. 

26          444441  6419081  At approx. upper edge of outcrop.

END         444601  6419397  Back at Start point.

Additional waypoints on map :

SUMIT       441504  6415750  Approx. summit of Geddes Rock (forested).

30          441240  6417661  T-junction of roads NE of Geddes Rock.

32          445450  6419839  Junction of McCallum and Watershed Roads.

33          448540  6420204  Junction of Metro and McCallum Roads. 

36          440699  6418271  T-junction of roads north of Geddes Rock. 

37          441604  6419206  On dirt road NNE of Geddes Rock.

38          441444  6420240  Junction of Millars and Randall Roads.

39          442431  6420317  On Randall Road.

40          440090  6418346  Dirt road nth. of Geddes Rock meets Millars Rd.

41          439474  6417441  Junction of Millars and Canning River Roads.

42          440849  6414390  Junction of Millars Log and Canning River Roads.

43          442071  6414458  Dirt road SE of Geddes Rock meets Millars Log Rd.

44          444164  6414741  Dirt road meets Millars Log Rd. in south.


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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.