Trig Points

[Cubist]

The trig point I was thinking of is SW of Nab Hill, at SE 009 304. (Sorry - it's Midgley Moor, not nearby Oxenhope Moor.)

Ah yes, big bleak lump overlooking Pecket Well! (the trig point, not you.....)

 

[Cubist]

@ColinJ That Limer's Gate bridleway.... is that part of the MTL? It looks worth riding, looks like you could put in a loop that drops down into Blue Pig territory.

 

[fatblokish]

Sort of similar function to these fellas...

How many of these do we all see daily?

 

[Mr Celine]

Sort of similar function to these fellas...

How many of these do we all see daily?

[pedant] Benchmarks are used for levelling not surveying. [/pedant]

 

[Cubist]

When we did adventure training up in the Highlands we used to have an unofficial "high altitude crap record". Ben Hollander won a lot of beer for crimping one off behind the trig point on Carn Eighe, 1183 metres...... shameful really!

 

[Bromptonaut]

Jolly useful pre GPS for an exact position fix before resorting to map/compass off a fogged summit.

 

[ColinJ]

@ColinJ That Limer's Gate bridleway.... is that part of the MTL? It looks worth riding, looks like you could put in a loop that drops down into Blue Pig territory.

No, the MTL comes down onto the road by Widdop Reservoir, does a few hundred yards towards Hebden Bridge on the road, then turns right up the side of Lower Gorple Reservoir and over onto Edge Lane.

There are various ways you can get from the Limer's Gate Bridleway to the Blue Pig ...

The obvious shortest route is a bridleway that goes down from Pecket Well and comes out by the entrance to Hardcastle Crags, so the Blue Pig is only a few yards away. That bridleway is a bit too technical a descent for me - I'm always frightened of falling off an hurting myself!

I prefer a longer route which is to take the Haworth Old Road down to the dip then turn left up the bridleway that heads back over the hillside and down to Hardcastle Crags. (Look at my second forum walk thread for photos.) Alternatively - turn right at the top of that bridleway and head round Shackleton Knoll to Walshaw, then follow the bridleway back through Shackleton before descending to the entrance of the Crags

From the Blue Pig, you can follow a bridleway up to Heptonstall, turn right in the village and ride up the cobbles, then turn left down Lumb Bank and follow the bridleway down to Church Lane, and get on the Rochdale canal towpath and take that back to where you started from. (Or any number of other variations!)

 

[srw]

[QUOTE 2418191, member: 76"]Near Salisbury there is a monument, well stone, called 'Gun end of Base'. It's where the whole triangulation of Britain (and probably the World) began. It was pointed out to us when we were doing some course or other at Larkhill, just up the road.

If memory serves, it was gun barrel they buried upright to be a fixed stable start point.[/quote]
If my memory serves, Rachel Hewitt (not that Rachel Hewitt but a different one) in her "Mapping the Nation" history of the Ordnance Survey claims a baseline on Hounslow Heath. Large chunks of it are now buried beneath Heathrow Airport, I believe. You need a flat surface for a reliably measurable baseline, so that sounds like a more plausible story than a column on the rather undulating Salisbury Plain.

 

[Cubist]

No, the MTL comes down onto the road by Widdop Reservoir, does a few hundred yards towards Hebden Bridge on the road, then turns right up the side of Lower Gorple Reservoir and over onto Edge Lane.

There are various ways you can get from the Limer's Gate Bridleway to the Blue Pig ...

The obvious shortest route is a bridleway that goes down from Pecket Well and comes out by the entrance to Hardcastle Crags, so the Blue Pig is only a few yards away. That bridleway is a bit too technical a descent for me - I'm always frightened of falling off an hurting myself!

I prefer a longer route which is to take the Haworth Old Road down to the dip then turn left up the bridleway that heads back over the hillside and down to Hardcastle Crags. (Look at my second forum walk thread for photos.) Alternatively - turn right at the top of that bridleway and head round Shackleton Knoll to Walshaw, then follow the bridleway back through Shackleton before descending to the entrance of the Crags

From the Blue Pig, you can follow a bridleway up to Heptonstall, turn right in the village and ride up the cobbles, then turn left down Lumb Bank and follow the bridleway down to Church Lane, and get on the Rochdale canal towpath and take that back to where you started from. (Or any number of other variations!)

Excellent, I'll get plotting, but it looks like a great leg stretch over that hill. I once got myself on the wrong side of the valley at Blue Pig, and ended up coming up through the scout camp to Heptonstall via the paths in the wood above. Interesting, but a lot of carrying. We then made our way over to Gorple, then back South on the PBway and along the river from Jack Bridge to the car. You can't beat the riding around there. Certain types like the ultra-technical descents the area is famous for, but it takes a hell of a lot of bottle, and I tend to wear kneepads now!

 

[ColinJ]

I have toyed with the idea of organising a forum MTB ride but have been worried by what I perceive as a greater risk of injury. That was backed up on a forum onslaught on the MTL - goodspeed fell off onto the same knee twice, and I endoed, did a backflip and landed heavily, fortunately onto grass!

 

[ColinJ]

[QUOTE 2421874, member: 76"]
Either way, what a bloody task, apparantly some bloke walked 558 miles in 22 days doing some measurements, the chain they measured the Salisbury Plain bit with was 7 miles long![/quote]
What amazes me is the level of accuracy that the OS were able to achieve before laser theodolites, GPS technology and the like were invented. The accuracy of the entire mainland map depended on the accuracy of the initial measurement, which was done by hand using a metal tape!

 

[Cubist]

I have toyed with the idea of organising a forum MTB ride but have been worried by what I perceive as a greater risk of injury. That was backed up on a forum onslaught on the MTL - goodspeed fell off onto the same knee twice, and I endoed, did a backflip and landed heavily, fortunately onto grass!

We can plot one that doesn't involve massive tech drops, or stress that it's an any pace pootle with no pressure to ride. I doubt I could complete the MTL yet anyway, so we could go for a half-dayer at a genteel pace!

 

[Andy_R]

My grandad always said measure twice, cut once. The OS original survey measured about 50 times before plotting once. I'm fairly accurate when it come to woodwork etc. The OS are anally accurate, to the point of OCD.

 

[ColinJ]

My grandad always said measure twice, cut once. The OS original survey measured about 50 times before plotting once. I'm fairly accurate when it come to woodwork etc. The OS are anally accurate, to the point of OCD.

I suppose if you take the same measurement lots of times, you are sometimes going to measure short and sometimes long so take the average of a lot of readings and the errors will tend to cancel out?

 

[ColinJ]

We can plot one that doesn't involve massive tech drops, or stress that it's an any pace pootle with no pressure to ride. I doubt I could complete the MTL yet anyway, so we could go for a half-dayer at a genteel pace!

I could definitely come up with a good 30 mile offroad route round here which wasn't too life-threatening!

Another thing to add to my 'do when fit enough' list!