Showing posts with label island ridge. Show all posts
Showing posts with label island ridge. Show all posts

Saturday, 29 September 2018

Mangahao / Ngapuketurua

Another visit to Mangahao is on the cards. There's quite a few spots that require investigation and from past experience they will be challenging.

Based on the map I reckon I can pick up a couple off the side of the Ngapuketurua ridge and three more heading down to the valley floor via a spur I know is not often traveled. All going well this will see me in the Mangahao Hut for the night. The next day a large loop up towards the main range above the hut will explore two large spurs that may have old routes up to the tops (knocking off four spots on the way).  Finally, if either day goes better than expected there are another couple of spots on the ridge to the east of the river.

So, somewhere between 9 and 11 spots and a chunk of new territory.

What:     Navigation trip and spot heighting
Where:   Ngapuketurua - Mangahao
When:    29-30 September 2018
Who:      Solo

Map:


The weekend route


The trip has an inauspicious start - the Waikanae beach bakery isn't open. Mildly out of sorts I continue to Shannon.

The drive is very familiar now ... long gravel road ... park by the dam - this time the top one. I'm away by 7.50am under low cloud.


Feel obliged to take this shot - sometimes it works ok



Up reservoir to the foot of Island Ridge


Lots of water spilling today

Half an hour later I'm at Baber forks and it's time to depart the marked route. Most people head up College Creek towards Burn Hut - the more adventurous head straight ahead up the spur and the old Ngapuketurua track for the ridge. I take the true left branch and follow Baber Creek into tiger country.



Baber Forks





I expect it to be a bit gorgy but it's easy going up the creek. There's been rain so the rocks are slippery but the water is only a little up. I'm looking for the first sizable stream entering from my left (true right). It turns out to be unmistakable; about 25 minutes from the forks.

I'm slightly reluctant to leave Baber Stream as the catchment looks interesting and I don't think I will be back. However, there are spot heights above that require attention.

At this point I can take to the bush and climb the spur, but I'm sort of liking the stream travel today so follow the side stream up to the next marked junction - it takes about 40 minutes. A short way up the true left branch I climb onto the spur aiming for what looks like easy access to a wee saddle.

And that's probably the last thing that goes as expected for the day.






Second junction - but it could be anywhere really

On the spur the forest pretty quickly turns into scrub which, although providing some views when the clag momentarily lifts, shows little sign of being much traveled.



Looking back to the dam 

At the top the familiar (unmarked) ridge track is starting to get overgrown and is sometimes easy to miss in the the tussocks. It still provides an easier route through the leatherwood if you keep your eyes peeled though. I'm pretty much at the cloud ceiling so visibility comes and goes.

12.10 and I'm standing at Ngapuketurua for the third time. The view is very similar to last time.


Ngapuketurua


Visibility ....


Last time through I failed to find the top of the spur I'm aiming for and ran out of time. This time I figure I know where I went wrong. I get near the right spot and the clag clears slightly - the good news is I'm on target, the bad news is that the target looks less than inviting.

 It's a tough bash down through dense, old leatherwood. The top section is steep and I see no evidence of any route. It's apparent that the original plan of bagging spot 900 and returning to the ridge is not a goer. I consult the map and devise an escape route involving dropping to a stream and sidling due west to a saddle I have visited previously.

Out of the scrub and with the cloud lifting it's a different day. It's a steep clamber down to the stream arriving at 2.10pm - care is needed in the bed but nothing out of the ordinary.



Unnamed stream below pt 900
pt 870 on Island Ridge in the distance

A little above the junction, I cut across the spur to the next stream (startling a couple of deer in the process - I imagine even hunters would be rare up here). This is where the sidle starts.

I'm always a bit leary about sidles - the theory may be good but they generally take a lot longer than expected as there is an awful lot of terrain and vegetation variation that doesn't feature on the map.

Eventually I get to the saddle and cross the route I took last time through. I have a choice of following that route back to the ridge through a healthy band of scrub then scrub bashing south west along the ridge to the next spot, or (optimism bias alert) continuing the sidle through more open bush to pop up through the scrub near the next spot height.

I continue the sidle but overestimate my rate of progress. As a result I can't tally the glimpses of surrounding hills with what my compass is telling me. In the end, conscious of daylight I head up to the ridge as the only way to completely confirm location. As soon as there is better visibility my heart sinks - I've rejoined the spur to 959. Lesson 1 - sidles take longer than you think, lesson 2 - sometimes you need to make sure you have traversed enough terrain before you can be sure your compass bearing isn't just reflecting a small local variation (this particularly applies to streams).

At 959 I turn southwest down the ridge and start a long battle with the scrub. The route has been traveled before (I find an abandoned water bottle), but infrequently and not enough to form any useful trail. It's getting into evening now and although I make pt 851, darkness catches up as I descend into the bush.

Under torchlight I follow the compass and the terrain as best I can and - probably more by good luck than anything, make it to the saddle before the next two spot heights. Taking another bearing I make the short climb to the next spot and head along the flat top until it runs out - at which point I know I've passed the last spot for the day. There may have been a bit of trail here but just about impossible to follow in the dark.

Around about now I give up any pretense of having a clue where I am. The path of least resistance takes me down the hillside (with a slight right bias in order to reach the riverside track rather than Harris Stream).

This is the point where you could curl up in a ball in your bivvy bag and spend a mildly uncomfortable night out, but I'm not about to chuck it in yet. I scramble down until the slope eases, a couple of old tape markers indicate something but no discernible track - than some old corrugated iron, a patch of bushlawyer and finally the track.

It's the familiar plod mode now - I'm feeling every inch of the battle through scrub the day has entailed and rising nausea. The track is relatively easy to follow by torchlight although the odd treefall and some points on the slip bypass track have me casting about.

At 10:50 I clomp wearily onto the veranda of the empty hut. I'm not really fit enough for 15 hour days like that. With dry clothes on I manage to force a bit of dinner down before crawling into pit. As tired limbs relax into quivering jelly plans A and B start formulating for tomorrow.


Saturday - the long way 'round


It's light when I wake. A good sign - I've slept well. Then comes the roll call - neurons explore the signals being fired in from stirring limbs. Result: tired but not broken - plan A is go.

Plan A is to climb the spur above the hut returning further down valley via another spur. Simple. It's a leisurely 9.05am that I pick up my still soaking pack and wander behind the hut to start climbing.







As expected it's easy travel through mature bush. There is surprisingly little trail for a major spur behind a hut.

The canopy lowers, then the scrub starts appearing around 800m - the going gets tough. A little higher the scrub opens and there are animal trails (and just possibly some human) and eventually more open tussock dominated terrain.

Like yesterday, t's cold on the tops with low visibility. The occasional showers are icy and I'm wearing everything accept my hut clothes. I keep my eyes peeled for where my down spur peels off as I will be returning to that point.

It's getting less and less hospitable and there are occasional patches of snow. At 12.30 I reach the target knob (1250m) - slower than anticipated.










After the obligatory selfie I turn tail. Shortly after successfully finding the spur down I drop below the cloud.  The tussock and low scrub is ok at the start but inevitably the scrub gets higher and the going gets harder - any hope that there might be a worn route quickly evaporate.


Starting to clear


Clear enough

On the map the spur looks like a sitter for an old route to the tops. If it ever was, the trail has long since faded meaning 2 odd kilometres of scrub travel.

The battle down to spot height 830m is long - the canopy then starts to lift and I can scoot along underneath more easily. But navigation get's more tricky.  I drift off line and by the time I detect it I am faced with the choice of climbing back or a long messy sidle. I try this for a bit and after some tricky waterfall gullies decide that I've had enough of that for this weekend. The third option wins - follow a creek to the track and climb to the last spot from the foot of the spur. .

The fatigue and nausea from yesterday are back. I'm not about to leave the next spot though so I drop my pack and scramble up and back.

Back on the track the sums tell me it will be dark before I get out . I make sure the head torch is handy and set off down valley. I force down some scroggin and water but it's not until my brain catches up and I start nibbling on a bumper slice that I get the much needed lift and nausea recedes (hurrah for sugar).




Sunday - the long way 'round


The support crew will be calling SAR if I'm not out by 10pm but I figure I have a comfortable margin.

Darkness catches up soon after the swing bridge over the Mangahao river. As usual I keep going as long as possible without a light - balancing the risk of tripping with the usefulness of peripheral vision for track finding. Under torchlight the world narrows to the familiar beam ahead showing pale trunks and the dark tunnel of the path.

The night is mild and as the food kicks in the nausea disappears. The track hits the flats and there are a few moments where I have to cast around to find it. Eventually the trees on the right give way to a sense of darkness and distance. The lake might be visible in daylight. From here the water is never far away - mostly apparent from the outraged squawks of the odd duck taking offence and flight at my presence.

Finally, the fence on the dam looms out of the dark and at 8.35pm I'm digging out the car keys. Well within the SAR margin but I do need to get down the road to cell phone reception.

In retrospect I should probably have remembered about daylight saving. The text went out at 9.15pm, somewhat closer to the time than anticipated. (Note that the instructions are to inform SARS that a well equipped tramper is late, and not to activate a search - so this is not quite so flagrantly irresponsible as it might first appear).

Postscript

Driving down the road I realise my wright wrist is in a pretty poor shape. I can't remember a specific incident but it takes over a week to recover. I don't think a bone was broken but it certainly felt like it.

The warts and all descriptions above may give the impression that the experience was miserable. The challenge of navigating at night and through seemingly impenetrable scrub is perhaps more enjoyable in retrospect than in the moment, but if it were truly miserable I wouldn't be back for more.

As well as the body, the scrub was pretty rough on kit. There are holes in the new scrub trousers, more bits ripped off  the gaiters and the mesh pockets on the pack are shredded.

And what about the unfinished business? There's still a few spots to visit up the Mangahao valley but the weekend has put a serious dent in them with nine knocked off.

Saturday, 28 April 2018

Island Ridge

The Mangahao dams area of the Tararuas has been extensively interfered with - historic logging and fires, a long access road, farming, forestry and accommodation. And of course the extensive modifications that come with Hydro development. The road and dams are obvious, but less so is the impact of water being hoicked out of the Mangahao river to pass west through the range to Shannon - leaving a trickle that follows it's normal course north east to join the Manawatu River miles away near Woodville.

Te Araroa passes through here and there are certainly some interesting corners - there are also some physical challenges, particularly if scrub is your thing. Overall this isn't my favourite part of the range but Island Ridge has caught my eye and (of course) there is a small matter of a bunch of spot-heights that require seeing to.

What:       Navigation, scrub bashing and spot-heighting
Where:     Island ridge (Mangahao)
When:      28-29 April
Who:        Solo
Maps:


Deep in the hills behind Shannon ...


Most of Saturday


Sunday (and start of Saturday)

Island Ridge is just that - a wee lump defined by a the Mangahao River, Baber Creek and connected to Ngapuketurua by a low saddle. Most people whistle up the river valley hardly glancing at it. A few others head up College Creek passing the north end of the ridge. After wandering around it and looking down on it I figure it's about time to pay a visit.

An 0445 start sees me bumping up the Mangahao Road after 0700. It seems like a while since the grader has been through. I park by the warning sign in the small carpark by the dam for reservoir two, and sort my life out. This includes donning flak jacket (flouro vest to try to discourage hunters from shooting me).


It still has the typo - hope they never change it

The lake is showing a muddy rim indicating it's down a bit, and the spill way isn't doing much, so there's little flow in the Mangahao River. At 0730 the sky is grey but not threatening as I head off for the 4 km (ish) walk to reservoir one - mildly tedious but not unpleasant.



Not much happening in the Mangahao river 


Reservoir two - showing a bit of mud

I'm less than half way when a ute offers a lift. Perched on the tray it's a far more satisfactory method of travel.  The chap and friends are shuttling a car to be ready when they complete the loop walk from reservoir two via Burn Hut.

The first order of business is a bit of a nothing really - pt 512 is a knob near the road end. Mr pink ribbon man has been up there - possibly for pest control although I can't see anything. I skid back down through the supplejack to the dam and the proper start to the day - it's now 0845.



The evocatively named Pt 512

The upper reservoir is also showing a bit of mud. The track to College Stream crosses the dam and across the water the base of Island Ridge comes down to the water.



Reservoir One - Island Ridge ahead


At the first opportunity I drop off the track and out of the bush to find a way across the stream mouth. Someone plus dog has already been through this morning but the footprints return so I'm less concerned about a hunter on the loose.


Tide's out


At the foot of the spur the shore is steep and there's a bank to scale to get into the bush. It takes a bit of fossicking to find a place to haul myself up. There are no signs of a track.

The scramble up starts as a steep clamber on a crumbling slope. There's a reasonable canopy with a few tangled clear patches on the way up.

At the ridge top, things look great - the canopy is high enough and the trees open enough that I can potter along at a good rate. It doesn't last. Soon it's tight saplings and then scrub. Generally not the worst type of scrub but slow nonetheless.


North back along Island Ridge - 'Peak' on the horizon

The scrub does mean lots of chances to look across towards the Camelbacks and Tawirikohukohu, and up to the ridge north of Ngapuketurua which, as the day wears on, starts to gather clag about its shoulders.

Towards the end of the ridge I can make out the saddle - it has a bit of a complex shape. Towards pt 870 and the end of the ridge the scrub gets more dense. At 1145 it has taken me 3 hours to get from the dam to pt 870.


Approaching south end of Island Ridge
Ngapuketurua in cloud on left - Saddle in middle 


From 870 (south end of Island Ridge) SW up Mangahao valley
Tawirikohukohu on right 


I keep hoping that people will have worn a trail up to here from the mouth of Dick Creek but can find no evidence. So, it's scrub bashing down until there's enough canopy to duck underneath.

I drift a little left onto a side spur but cut across to find an erosion scar that points to the saddle. Once in the saddle the bush is more open and, as expected, there are plenty of animal trails with the understory pretty much cleaned out (a common sight in low saddles). The wind in the trees almost drowns out the occasional roar drifting up from the Dick Creek side.

I pause for a bite and to regroup - things are much slower than expected so I figure I will only be going as far as the hut tonight - I'm still hoping to divert to two spot heights off the side of the range near Ngapuketurua.

Climbing out of the saddle is the reverse of climbing in - forest gives way to low canopy then, inevitably to scrub - still no trails. A handy rock gives a nice wee view back into the saddle but otherwise it's just a long grind up taking well over an hour to get through the saddle from 870. I'm hoping for a trail coming up the major spur to Ngapuketurua from Harris Creek - nope. More and worse scrub. Some game trails higher up but these wander off and disappear. The cloud comes and everything gets progressively damper.

This may all sound a little depressing but there's a certain mindless satisfaction in rolling out of the scrub to the top with bleeding knees having unequivocally 'knocked the bugger off.' The scrub is also very healthy with the usual suspects present - leatherwood being the most annoying (slippery, contorted and prone to breaking suddenly), totara (much harder and springier than the rest of the shrubbery and surprisingly spikey), and around here; mountain cedar (dense to push through with low branches - but smells nice), and mountain toatoa (just gets in the way). Dracophyllum filifolium can be tricky when thick but at least you can grab hold to haul your way up without it splintering. Higher up the grasses and tussocks add their own little tripping hazard as they tangle into the leatherwood.



Looking west across the saddle at 870

There's a wee cairn tucked into the tussock at the top of Ngapuketurua but still not a lot in the way of trails. It's not cold although there's a bit of wind moving the clag about.

It's a bit after 1500 - I figure it will be tight but I should be able to knock of at least one of the two spot-heights that someone has carelessly placed off the east side of the main ridge. After thrashing through more scrub and popping a short way down a dead end spur, the clag shifts enough to show that I'll not be sleeping in a hut if I continue. So ... back to the top - a compass bearing into the featureless gloom and off we go - it's now 1540.

Last time I was through there was a trail running diagonally SE up the north face of Puketurua - I manage to find it but then lose it again. It's pretty easy to pick up though once on the ridge.


Finding the way off Ngapuketurua

From Ngapuketurua there is an old, but well cut trail along the ridge. It forms a tunnel through the clumps of leatherwood, and a foot trail through the low scrub and tussock. Although the day is getting on, progress is good - until the top of the spur to Baber forks that is. I suspect this is where a lot of people exit/enter the tops as it is harder finding the trail from here on. I lose it completely on the drop to 840. The top here is broad and featureless so you just follow the compass and pick your way through low, knee-shredding scrub and tussock.



This bit is definitely a track

The light wanes and the clag refuses to lift. The track comes and goes and in the gloom is easily lost - at 5.30 it's getting mighty close to headlamp time. I hold out until finally reaching the track. By now it's dark and all but raining. Visibility is down to about seven meters but the track is a wide swathe in the headlamp. The rain sets in just as I arrive at the hut at 1900.

Empty: downside is no hot brew ready for a wet, scratched tramper. Upside is no snoring or dogs, and I can spread out. It isn't cold but with no fire I get dry and into my bag while the water boils for dinner.

By candlelight the hut is tidy and cosy. Someone has left a few books and I while away the time reading old scifi (minus the last chapter unfortunately).


Burn Hut

The rain splatters against the hut all night - not too heavy and not too cold, but incessant. By morning I have talked myself out of thrashing around in the scrub chasing spot-heights through the clag. I figure it will take two more trips to tidy this area off - hopefully with a view of more than the inside of the next patch of leatherwood.

There's time for coffee, porridge and to finish the book before braving the elements at 0845. There's cellphone coverage up here and home command has acknowledged the plan change.

It turns out to be not so bad. Sure, it's the inside of a cloud but the track is (at least initially) open and the temperature mild. It's as muddy and slippery as you would expect given the rain.

About 0955, I'm standing on the humpback bridge at the bottom above a high flowing creek as it cascades into the Mangahao (which has more water than I've seen previously). A fantail pops by to say hello - the rain has stopped and the clag is left behind on the tops.

In a tactical move I thrash up a messy spur to pick off a low hanging spot-height - in theory the next trip will be just a little bit simpler for the effort.

The slip way at the dam is operating and the lake level looks like it has come up about a meter overnight. At 1130 it's been less than a half day tramp but I'm more than ready to hit the road - hopefully ahead of the end of school holiday traffic.










 
 
 
Saturday
 


Sunday