Hancock Brook Walks (Walks #9b, 9c)

 

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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 profiles

6) Walk description

7) Waypoint listing and grid references

 

 Walk map  Photo
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Hancock Brook in a dry winter, June 2010.

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More photos.

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          Route profiles

 

           OPTION A:  From Flynn Rd (Wariin Brook)

           OPTION B:  From Gorrie Rd (Helena Brook)

                                    

 Walk description  
Location :

Option A (Flynn Rd): 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 (part sealed, part good condition dirt road).

Option B (Gorrie Rd): Approx. 46 kms east of Perth along Great Eastern  Highway to Gorrie Road turnoff on right (approx. 1 km after Old Northam Rd turnoff on left) then further 2.3 kms down Gorrie Road (good condition dirt road).

Length :

Option A (Flynn Rd): 13 kms (86% off-track)

Option B (Gorrie Rd): 16 kms (73% off-track)

Degree of difficulty :

MEDIUM   (What does this mean?)

Amount of uphill walking :

Option A: 270m (cumulative ascent)

Option B: 335m

GPS-preferred :

YES

Access  :

See Google Map for start point on satellite map.

(Use zoom ladder for detail. Select 'Map' for roads only.)

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

Option B (Gorrie Rd): Park on the side of Gorrie Road at 'START-G' close to where the road crosses a small stream gully (Helena Brook). Alternatively, park down old vehicle track which leaves Gorrie Rd 50m north of 'START-G'.

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 south or east, follow Cavern Road NE to Flynn Road or SW to Gorrie Road (then 6.5km NNW on Gorrie Road to Great Eastern Hwy). In north and west, various vehicle tracks lead to Great Eastern Hwy or Gorrrie Rd.

Main features

/Highlights:

The highlight of the two walk options in this area is the very pleasant 3 km stroll through wandoo woodlands along the banks of Hancock Brook located about 15 km east of Mundaring. The best time to visit the area is late winter-early spring when the Brook is more likely to be flowing resulting in a number of small waterfalls and cascades along the mainly rocky stream course. (The stream course drops in elevation by about 65m from north to south along the walk route.) As always, in early spring the wildflowers also add something special to every bushwalk. Both walk routes also traverse one or two large granite outcrops on the hillsides which provide some good views of the forest surroundings, and in the case of Option A walk, views to Mt Dale, 23-25 kms south.

It's worthwhile doing both separate walk options: The routes overlap along the Brook but are otherwise different in what they offer:

Walk Option A (Flynn Rd): This is the shorter of the two walk options (by 3 kms) and has a little less uphill walking, but almost the same net distance of off-track walking. The last 2.5 kms section of the route (from near Cavern Rd crossing back to Wariin Brook) overlaps with the first part of the Mt Gorrie Walk.

Walk Option B (Gorrie Rd): Although longer, this walk includes 4.3 kms of easy walking along old forestry tracks. The route includes some additional pleasant walking through wandoo woodlands along the upper reaches of Helena Brook (which flows into Helena River about 6 kms to the south). It also visits an old logging sawpit which was likely associated with the former Forsyths Mill, which was located about 3.5 kms NW of the sawpit location.

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 local history:

Forsyth's Mill - The Mill operated from 1896 to 1903 at the corner of Gorrie Rd and Great Eastern Hwy. There is a useful DEC information panel at the location which provides some information on the history of the area. The location is also the trail head for the popular Forsyth's Mill Mountain Bike Trail adopted by the Perth Mountain Bike Club and managed by DEC.

"Malmalling" Homestead - The Gorrie family ran the former "Malmalling" property to the south of the walk area from 1907 until 1953.   The homestead was located about 2.3 kms south of  where the walk routes meet Hancock Brook at waypoint 'H1'. Beef cattle were run on the Gorrie 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 :

 

Walk Option A (Flynn Rd)

From 'START-W' point cross the nearby Wariin Brook to follow the dirt road 1.5 km WSW in a fairly straight line (along old fenceline) through wandoo woodlands to reach a T-junction (at waypoint 'W1'). Turn right and follow the vehicle track for less than 200m to a stream gully at 'W2'. Veer westward to head off-track along the southern side of the gully through open woodland for almost 1 km, passing a small outcrop on the north bank before reaching 'W3'. Then head SSW, soon crossing the laterite-capped ridge crest at about 'W4'. Descend gently S-ward across rocky ground and low heath (via 'W5') to reach quite open ground at the head of a SW-sloping side valley. Head S-ward along slope for about 250m to 'W7', then veer SW to 'W8' along the steepening pebbly escarpment below a distinctive, laterite-capped hill-top. Then veer sharp right (WNW) to head downslope for 400m through wandoo woodland to 'W9' near a stream gully. Cross the gully to continue WNW across a low rocky ridge (via 'W10') to reach the boulder-filled Hancock Brook. Cross the Brook to the steepish west bank (to 'H1') and then head N-ward along the slope to 'H2' before descending to re-cross the Brook onto a granite slab along the east bank at 'H3'. Now, simply head N-ward along the east bank of Hancock Brook via 'H2', 'H3', 'H4', 'H5', 'H6', 'H7', passing a possible very small waterfall at 'H4' and rapids at 'H5' (only flowing following good winter rainfall). Cross other rock slabs (via 'H6' and 'H7') and pass through a thicket of sheoak to cross Cavern Road at 'H8' (which is about 1 km of walking distance since you started along the Brook). Continue N-ward via 'H10' etc, staying close to the stream course. Following good rainfall there will be very small rapids or cascades at several points along the way (e.g. at 'H10', 'H11', 'H12'). In places, the shrubland becomes denser near the stream course (e.g. between 'H11' and 'H12') and it is then best to briefly detour up to 30m away from the stream for easier walking. Cross a small, low granite dome at 'H13' and then cross the Brook to continue N-ward along the west bank through very picturesque woodlands. Stay above the stream gully which becomes more deeply incised N-ward. Cross another dirt road at 'H14' and soon after cross a deep side gully. Continue north to 'H15' at which point you have walked 3 km along Hancock Brook. Descend the steep western bank and head NE through mixed forest to 'H16', then N-ward to cross a gentle gully and pass through a patch of shrubland to reach a granite slab (near 'H17'). Head up the slope of the slab via 'H18' (from where there will be good views, including to the pyramid-shaped Mt Dale.) After reaching the top of the rock slope at 'H19', head directly upslope and in less than 50m arrive at a cluster of large boulders near the forest edge. (This makes a pleasant spot for a rest stop.) Then head due east along slope through open jarrah forest to 'W12' near the crestal area of a broad NW-SE trending ridge.  Then head SE-ward along the ridge (via 'W13') and descend slightly to a small outcrop at the head of a NE-ward draining gully. Continue along slope to enter wandoo woodlands again (near 'W15') where there are more rocky outcrops. Veer SSE-ward, upslope, to return to the crest of the ridge (via '16' and '17'). Re-cross Cavern Road at 'W18' and veer S-ward downslope to reach a rock outcrop at 'W19' from where there is a good view SW across a small valley. Head along slope through partly scrubby bush and sheoak thickets (avoiding low, thick heath over much of the crestal area of the ridge). At 'W20' veer S-ward down the plunging ridge crest via 'W21', crossing rocky outcrops. At 'W22' veer E-ward and soon descend to cross a small stream course at 'W23' and then a small stream channel at 'W24'. Meet the dirt road at 'W25' and follow it back across Wariin Brook to regain the Start point.

Walk Option B (Gorrie Rd)

From 'START-G' point on Gorrie Road, head off track W-ward close to the north bank of Helena Brook. Soon cross a side gully (near 'G1') and continue over a low rocky rise through open wandoo woodland. After 'G2' closely follow the stream course to 'G3' where it drops across a dolerite ledge creating a small waterfall. Veer WSW on the south bank and soon reach Cook Road (at 'G5').  Continue S-ward, staying close to the stream course which flows across an outcrop. At 'G6' veer left to head SE upslope through heath and balgas. After 'G7' stay slightly downslope of the spur ridge on your right and soon reach an outcrop. Climb the sloping outcrop to 'G8' and continue SE-ward, entering jarrah forest and reaching a fairly flat hill top by 'G9'.  Veer S-ward and soon descend through forest to another, smaller outcrop at 'G10', with views west over a pine plantation in the valley and to the forest beyond. Veer SE to head along slope (via 'G11') and across the crest of the ridge to reach (at 'G12') the corner of a dirt road around a pine plantation. Follow the road (via 'G13') S-ward to the junction with Trew Road (at 'G14'), passing another pine plantation now on your right. Turn left to follow Trew Rd E-ward to a side road at 'G15'. Then head ESE-ward, off-track through woodland to soon cross a gully and reach Gorrie Road (at 'G16', 2 kms SE down the road from the Start point). Head S-ward on Gorrie Rd for only 200m to a vehicle track on the left (at 'G17'). Follow the track uphill through forest, initially NE, but then veering SE and steepening after 'G18'. The track crosses a narrow ridge and meets another (N-S) track at 'G19'. Turn right on the track to continue SW-ward, downhill along the SW side of a gully. The track veers S-ward along slope at 'G20' and then joins Cavern Road at 'G21'. Continue S-ward on the road to 'G22', then head SE-ward off-track down a steepening slope to reach the gully of Hancock Brook at 'G23'. Now head northward along the Brook for 3 km via waypoints 'H1' through to 'H15' (as described above for the OPTION 1 route). At 'H15', you may follow 'H16', 'H17', 'H18', 'H19' away from the Brook as for OPTION 1 to ascend the rock slab on the NE flank of the valley. After reaching 'H19', then head NW-ward along slope to pass through 300m of forest and reach another outcrop at 'G24'. Continue NW-ward mainly along slope and mainly on outcrop to 'G25'. Then veer W-ward to descend through forest and woodland and re-cross Hancock Brook at 'G26'.

[Alternatively at 'H15', if low on energy, you can opt not to cross the Brook to 'H16', but instead stay on the west bank for a further 1.3 kms to reach 'G26'. That option reduces the walk distance by 0.5 km and also reduces the amount of uphill walking by about 30m.]

From the Brook at 'G26' head W-ward gently upslope to 'G27' to reach a clearing in the forest. Here there is evidence of the early logging days, in the form of a large trench-like sawpit where timber would have been cut with a longsaw. Nearby there is also the remnants of a small fireplace construction with scattered, rusted metal relics. Continue W-ward, crossing one vehicle track and reaching another at 'G28'. Veer WNW to meet Cook Road at 'G29'. Head west up the road which crosses the ridge.  Leave the road at 'G30' to continue W-ward, descending to 'G31' near the south bank of Helena Brook. Then follow the south bank W-ward through mixed forest for 800m (via 'G32' and 'G33') to rejoin Gorrie Road at 'G34'. Turn right on the road to reach the Start point ('START-G')within 50m. [Alternatively, at 'G31', instead of closely following the stream course you can opt to cross Helena Brook to the north bank and head upslope for 100m to meet a minor vehicle track (not shown on map). Follow the track W-ward for about 750m to meet Gorrie Rd only 50m north of 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

WALK OPTION A (Flynn Rd)

Waypt name      Easting      Northing             Comments
START-W    438243 6467534  Park car just east of Wariin Brook.
W1         436739 6467171  Old vehicle track T-junction.
W2         436665 6467322  On vehicle track on S-side of stream gully crossing.
W3         435875 6467197  Off-track, in transition from wandoo woodland to jarrah forest.
W4         435757 6466994  On laterite ridge top.
W5         435741 6466798  Rocky, SW-sloping, low heath.
W6         435707 646671   At N-side of mainly open area at head of side valley sloping SW.
W7         435714 6466432  Near S-side of mainly open area, laterite capped hill top to sth.
W8         435630 6466314  On steeply sloping pebbly escarpment below laterite capped hill top.
W9         435226 6466392  Near stream course in broad gully.
W10        434958 6466459  On rocky slope in shrubland.
H1         434884 6466520  On bank of Hancock Brook.
H2         434889 6466589  On W bank above Hancock Brook.
H3         434918 6466605  Rock outcrop and boulders along Hancock Brk.
H4         434969 6466868  Very small waterfall (if Brook flowing!).
H5         435006 6466978  Small rapids across granite along stream crs (if flowing!)
H6         435097 6467100
H7         435080 6467212  Rock slab near small side stream (if flowing!)
H8         434999 6467426  Cavern Road.
H9         434973 6467446  Hancock Brook flows over granite rocks.
H10        434987 6467605  Very small rapids over granite rock (if Brook flowing!)
H11        435005 6467799  Small rapids (if Brook flowing!)
H12        435105 6467935  Very small cascades (if Brook flowing).
H13        435177 6468325  Small granite 'dome' rock near stream course.
H14        435283 6468741  Dirt road. (Connects Cavern Rd to Cook Rd).
H15        435241 6469185  On steeply sloping W bank opf Hancock Brook.
H16        435388 6469393  In open forest.
H17        435398 6469527  Lower slope of large granite slab.
H18        435437 6469714  On upper slopes of large granite slab.
H19        435380 6469809  Near top of large granite slab.
W11        435390 6469854  Cluster of large boulders & outcrop in forest.
W12        435573 6469872  In jarrah forest on broad ridge.
W13        435795 6469675
W14        435905 6469243  Near upper edge of gently E-ward sloping outcrop.
W15        436321 6469047
W16        436391 6468794  Wandoo woodland on broad ridge.
W17        436499 6468665  Wandoo woodland on ridge.
W18        436602 6468553  Cavern Road.
W19        436614 6468418  At NW end of SW-sloping granite slab. View to Mt Dale.
W20        436820 6468194  On broad ridge, slopes v gently S-ward.
W21        436804 6467913  Near top of SW-sloping outcrop.
W22        436942 6467666
W23        437283 6467622  Minor stream course.
W24        437715 6467628  Tributary feeder stream to main Wariin Brook.
W25        438102 6467471  Old vehicle track.
START-W    438243 6467534  Car at Start/End point east of Wariin Brook.

WALK OPTION B (Gorrie Rd)
Waypt name      Easting      Northing             Comments
START-G    431855 6470321  Park car on side of Gorrie Rd nr Helena Brook crossing.
G1         431712 6470291  Helena Brook- near northern tributary crossing.
G2         431421 6470306  Wandoo woodland.
G3         431220 6470293  Along Helena Brook stream course.
G4         431172 6470265  On S-bank of stream overlooking small falls (dolerite ledge).
G5         430965 6470153  Cook Road.
G6         430877 6469960  Small rock pool along stream course.
G7         431013 6469836  On flank of NW-plunging ridge. Low heath & balgas.
G8         431169 6469767  On upper slope of large granite rock slab.
G9         431306 6469666  In open forest, on flattish hill top.
G10        431337 6469352  On rock slab, with view to west over forest and plantation.
G11        431551 6469118  In open forest.
G12        431730 6469026  At corner of perimeter rd around pine plantation.
G13        431786 6468931  At corner of perimeter rd around pine plantation.
G14        431800 6468622  On ridge. Trew Rd intersects rd around pine plantation.
G15        431993 6468627  T-junction of side road with Trew Rd.
G16        432531 6468566  Gorrie Road.
G17        432676 6468427  T-junction of side forestry road with Gorrie Road.
G18        432971 6468562  On forestry vehicle track.
G19        433986 6468260  T-junction of forestry roads.
G20        434743 6467492  On forestry vehicle track.
G21        434695 6466953  Y-junction between old forestry track and Cavern Rd.
G22        434696 6466739  On southern section of Cavern Rd.
G23        434876 6466491  On bank of Hancock Brook.
H1         434884 6466520  On bank of Hancock Brook.
H2         434889 6466589  On W bank above Hancock Brook.
H3         434918 6466605  Rock outcrop and boulders along Hancock Brk.
H4         434969 6466868  Very small waterfall (if Brook flowing!).
H5         435006 6466978  Small rapids across granite along stream crs (if flowing!)
H6         435097 6467100
H7         435080 6467212  Rock slab near small side stream (if flowing!)
H8         434999 6467426  Cavern Road.
H9         434973 6467446  Hancock Brook flows over granite rocks.
H10        434987 6467605  Very small rapids over granite rock (if Brook flowing!)
H11        435005 6467799  Small rapids (if Brook flowing!)
H12        435105 6467935  Very small cascades (if Brook flowing).
H13        435177 6468325  Small granite 'dome' rock near stream course.
H14        435283 6468741  Dirt road. (Connects Cavern Rd to Cook Rd).
H15        435241 6469185  On steeply sloping W bank opf Hancock Brook.
H16        435388 6469393  In open forest.
H17        435398 6469527  Lower slope of large granite slab.
H18        435437 6469714  On upper slopes of large granite slab.
H19        435380 6469809  Near top of large granite slab.
G24        435117 6469971  Near edge of partly heath-coverd granite slab to NW.
G25        434871 6470307  Granite slab.
G26        434514 6470212  Hancock Brook.
G27        434135 6470262  Historic logging sawpit & remains of nrby small campfire/forge.
G28        433979 6470265  Vehicle track (approx. N-S). Cook Rd crosses <100m to nth.
G29        433882 6470313
G30        432978 6470255  On Cook Road (dirt road).
G31        432627 6470248  Close to sth bank of Helena Brook upper reaches.
G32        432509 6470174
G33        432007 6470190  Near Helena Brook, south bank.
G34        431849 6470280  Gorrie Rd, near crossing of Helena Brook.
START-G    431855 6470321  Car at Start/End point on Gorrie Rd nr Helena Brook crossing.

Additional waypoints :
SLB2       435256 6469759  Alternative point between H17 & G24 on granite slab.
BIGRK      433226 6466742  Large dome-like granite outcrop SW of Gorrie Rd (alternative route). 
HMSTD      435472 6464362  Location of former "Malmalling" homestead 
(1900-1968).
 

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This page was last updated  :   24 March, 2017

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