Trig Point Adoption Scheme

I think you may have to check with the OS Office in Southampton as a
few of the trig points are still used and maintained by them.

They may also be able to give you details of who, if anyone , you
should contact.

Lindsay.
www.caledoniahilltreks.com

I joined onto the scheme 1994, and I seem to recall it was mostly all done
by '96.

"Lindsay" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

I think you may have to check with the OS Office in Southampton as a
few of the trig points are still used and maintained by them.

They may also be able to give you details of who, if anyone , you
should contact.

Lindsay.
www.caledoniahilltreks.com

Bitstring <[email hidden]>, from the
wonderful person Alan <[email hidden]> said

Quoted message said:

Went for stroll this morning around the Brecon Visitor Centre and took in
the Trig point on Twyn y Gaer. As I approached I found a woman giving it a
lick of paint. Got chatting to her and she mentioned that some time ago she
had *adopted* the trig point to look after it. She lives in Cardiff but her
local trig was already taken and she spends a fair bit of time around the
Brecon area so chose this one - she says it is easy to get to as well!
Anyway, wondered if anyone has any details of where I might get the info for
this scheme - if its still running?- as I wouldn't mind doing something
similar for the trig up my local hill, Carn y Cefn.

As someone already said, you ought ask the OS, but in the meantime you
might get a faster answer from the trigonomy group on yahoo:

http://groups.yahoo.com/group/trigonomy/

They certainly know where they all are, and wander round the country
collecting them .. whether they actually go so far as to tend them I'm
not sure, but they might know about it.

--
GSV Three Minds in a Can
Contact recommends the use of Firefox; SC recommends it at gunpoint.

On Sun, 26 Jun 2005 17:13:55 +0000 (UTC), "Alan"
<[email hidden]> wrote:

| Went for stroll this morning around the Brecon Visitor Centre and took in
| the Trig point on Twyn y Gaer. As I approached I found a woman giving it a
| lick of paint. Got chatting to her and she mentioned that some time ago she
| had *adopted* the trig point to look after it. She lives in Cardiff but her
| local trig was already taken and she spends a fair bit of time around the
| Brecon area so chose this one - she says it is easy to get to as well!
| Anyway, wondered if anyone has any details of where I might get the info for
| this scheme - if its still running?- as I wouldn't mind doing something
| similar for the trig up my local hill, Carn y Cefn.

I wonder if these people would get them surveyed to a 10 figure (1m) OS
grid reference, or better? and put a little plaque on them giving this
info. Would be useful for GPS users.

--
Dave Fawthrop <dave hyphenologist co uk> http://www.webshots.com
Thousands of wonderful professional photos for your Wallpaper and
Screensaver. also 200,000 amateur pics. Four new pics each day.

In message <[email hidden]>, Dave Fawthrop
<[email hidden]> writes

Quoted message said:

I wonder if these people would get them surveyed to a 10 figure (1m) OS
grid reference, or better? and put a little plaque on them giving this
info. Would be useful for GPS users.

I'm pretty sure this info is on the OS website (for trig points that
they still use at least). It's somewhere after

http://www.gps.gov.uk/login.asp

I'd look for it, but I haven't got my password at work. It's probably
'Passive Station Database'.

Regards

--
Neil Pugh

On Mon, 27 Jun 2005 14:56:25 +0100, Neil Pugh <[email hidden]>
wrote:

| In message <[email hidden]>, Dave Fawthrop
| <[email hidden]> writes
| >
| >I wonder if these people would get them surveyed to a 10 figure (1m) OS
| >grid reference, or better? and put a little plaque on them giving this
| >info. Would be useful for GPS users.
| >
|
| I'm pretty sure this info is on the OS website (for trig points that
| they still use at least). It's somewhere after
|
| http://www.gps.gov.uk/login.asp
|
| I'd look for it, but I haven't got my password at work. It's probably
| 'Passive Station Database'.

I am registered on http://www.gps.gov.uk and only a very few trig points
are also Passive stations. This does not include the redundant ones.

--
Dave Fawthrop <dave hyphenologist co uk> http://www.webshots.com
Thousands of wonderful professional photos for your Wallpaper and
Screensaver. also 200,000 amateur pics. Four new pics each day.

Bitstring <[email hidden]>, from the
wonderful person Dave Fawthrop <[email hidden]> said

Quoted message said:

On Sun, 26 Jun 2005 17:13:55 +0000 (UTC), "Alan"
<[email hidden]> wrote:

| Went for stroll this morning around the Brecon Visitor Centre and took in
| the Trig point on Twyn y Gaer. As I approached I found a woman giving it a
| lick of paint. Got chatting to her and she mentioned that some time ago she
| had *adopted* the trig point to look after it. She lives in Cardiff but her
| local trig was already taken and she spends a fair bit of time around the
| Brecon area so chose this one - she says it is easy to get to as well!
| Anyway, wondered if anyone has any details of where I might get the info for
| this scheme - if its still running?- as I wouldn't mind doing something
| similar for the trig up my local hill, Carn y Cefn.

I wonder if these people would get them surveyed to a 10 figure (1m) OS
grid reference, or better? and put a little plaque on them giving this
info. Would be useful for GPS users.

I thought I'd mentioned here before that I already have 10 figure grid
data on all the UK pillars (including several that are gone away!), and
the same thing compiled into a Garmin /img file that you can stick on
your GPS (if it supports map uploads) which is part of the 'contours'
pack at the SMC website.

--
GSV Three Minds in a Can
Contact recommends the use of Firefox; SC recommends it at gunpoint.

Dave Fawthrop said:

| >
| >I wonder if these people would get them surveyed to a 10 figure (1m) OS
| >grid reference, or better? and put a little plaque on them giving this
| >info. Would be useful for GPS users.

Dave,

It might not be a plaque on them but have you had a look at the records
at http://www.trigpointinguk.com/ ?

Lots of the inividual records have ten figure grids associated with them
which have been surveyed by trigpoint spotters. This, at least, allows
you to set up the trigpoint in your GPS before you go out and should
ease finding it. You could argue that a plaque with the ten figure grid
on the pillar would be superfluous; if you were close enough to read the
plaque then you probably wouldn't need to know the NGR that accurately!

:-)

Regards

Steve

In message <[email hidden]>, Dave Fawthrop
<[email hidden]> writes

Quoted message said:

On Mon, 27 Jun 2005 14:56:25 +0100, Neil Pugh <[email hidden]>
wrote:

| In message <[email hidden]>, Dave Fawthrop
| <[email hidden]> writes
| >
| >I wonder if these people would get them surveyed to a 10 figure (1m) OS
| >grid reference, or better? and put a little plaque on them giving this
| >info. Would be useful for GPS users.
| >
|
| I'm pretty sure this info is on the OS website (for trig points that
| they still use at least). It's somewhere after
|
| http://www.gps.gov.uk/login.asp
|
| I'd look for it, but I haven't got my password at work. It's probably
| 'Passive Station Database'.

I am registered on http://www.gps.gov.uk and only a very few trig points
are also Passive stations. This does not include the redundant ones.

Try:

http://www.36haroldstreet.freeserve.co.uk/trigpoints.htm

Regards
--
Neil Pugh

Quoted message said:

I thought I'd mentioned here before that I already have 10 figure grid
data on all the UK pillars (including several that are gone away!), and
the same thing compiled into a Garmin /img file that you can stick on your
GPS (if it supports map uploads) which is part of the 'contours' pack at
the SMC website.

Knew about the SMC contours but has anyone seen if they are different to the
garmin , mem map etc data ?

I use FUGAWI and I think the data is pretty poor.

Nick

Well and truly hijacked...but thanks to those that gave me some leads. Just
to let you know that the scheme is no longer around but had a nice letter
from a woman at OS who said if I was knew of a Trig Pillar that needed some
TLC I should administer it....not before getting the land owners permission
of course. Think the land is common land but I need to find out more - went
up there last night to have a good look at it and to be honest it must be
the worst maintained that I have seen...some gits have even chipped away at
the top in order to get the trig thing off there. Now not being a master
builder I just need the right ingredients and some tools to try and make it
look better - wonder if poly filler would be any good??

Well and truly hijacked...but thanks to those that gave me some leads. Just
to let you know that the scheme is no longer around but had a nice letter
from a woman at OS who said if I was knew of a Trig Pillar that needed some
TLC I should administer it....not before getting the land owners permission
of course. Think the land is common land but I need to find out more - went
up there last night to have a good look at it and to be honest it must be
the worst maintained that I have seen...some gits have even chipped away at
the top in order to get the trig thing off there. Now not being a master
builder I just need the right ingredients and some tools to try and make it
look better - wonder if poly filler would be any good??

Bitstring <[email hidden]>, from the
wonderful person "Nick (Scots)" <[email hidden]> said

Quoted message said:

Quoted message said:

I thought I'd mentioned here before that I already have 10 figure grid
data on all the UK pillars (including several that are gone away!), and
the same thing compiled into a Garmin /img file that you can stick on your
GPS (if it supports map uploads) which is part of the 'contours' pack at
the SMC website.

Knew about the SMC contours but has anyone seen if they are different to the
garmin , mem map etc data ?

Afaik Garmin don't have any contour data for the UK.

The Memory map, Fugawi, and Tracklogs contour data will be (should be)
more accurate, being derived from OS data (aerial photos etc.), however
you can't load it onto a GPS handset. The SMC data comes from a
calculation of where the contours might be based on spot heights which
are on a grid of anything up to 90m by 60m.

Quoted message said:

I use FUGAWI and I think the data is pretty poor.

I don't .. I use Tracklogs and the height data displayed on the maps is
exactly the same as OS 1:25k data. The height data in their 'fly through
3D model', and what they use for calculating heights of tracks, etc. is
derived from the same NASA STRM data as the SMC website contour maps,
although it has been differently processed. It will therefore have the
same accuracy problems.

--
GSV Three Minds in a Can
Contact recommends the use of Firefox; SC recommends it at gunpoint.

Quoted message said:

Afaik Garmin don't have any contour data for the UK.

So they just referenced on the OS map contours ??

Quoted message said:

Quoted message said:

I use FUGAWI and I think the data is pretty poor.

If I draw around a hill, along the same contour, the gradient profile
is variable in ht, significantly. Obviously there should be no ht gain.

Quoted message said:

I don't .. I use Tracklogs and the height data displayed on the maps is
exactly the same as OS 1:25k data. The height data in their 'fly through
3D model', and what they use for calculating heights of tracks, etc. is
derived from the same NASA STRM data as the SMC website contour maps,
although it has been differently processed. It will therefore have the
same accuracy problems.

I always thought a tracing program or something would 'read' the contour
data
then use that.

Oh well. Now then what basemap did I use for france again ???

Off to Chamonix - 2 weeks, Pyrenees - 2weeks, Cinque Terri (great clifftop
walking) -3 days, Dolomites - 10days. Eagles Nest/Bavaria - 3 days. Cuple o
strong beers in Brugges, home via the Zeebrugge ferry to Rosyth.

Phew, it's gonna be tough ............

Nick

Bitstring <[email hidden]>, from the
wonderful person "Nick (Scots)" <[email hidden]> said

Quoted message said:

Quoted message said:

Afaik Garmin don't have any contour data for the UK.

So they just referenced on the OS map contours ??

Not sure what they reference .. what Garmin software (or maps, or
whatever) are you talking about??

Quoted message said:

Quoted message said:

Quoted message said:

I use FUGAWI and I think the data is pretty poor.

If I draw around a hill, along the same contour, the gradient profile
is variable in ht, significantly. Obviously there should be no ht gain.

Ah, in that case Tracklogs (and probably Fugawi) are deriving height
data for points along the track from the DEM (Digital Elevation Model)
database, which (unless they bought the good stuff from the OS, which I
bet they didn't - tracklogs certainly didn't - not least because the OS
wants paying again every year afaik) is just repackaged NASA SRTM data.

Now if you'd trace round one of the contours =derived= from the NASA
(e.g. the ones on the SMC website) you'd likely get zero height changes
as measured by Fugawi/Tracklogs/etc. If you trace round a 'real'
contour, then everywhere it diverges from the 'derived' contour you'll
get a height change (error).

--
GSV Three Minds in a Can
Contact recommends the use of Firefox; SC recommends it at gunpoint.

GSV Three Minds in a Can said:

Bitstring <[email hidden]>, from the
wonderful person "Nick (Scots)" <[email hidden]> said

Quoted message said:

Quoted message said:

Afaik Garmin don't have any contour data for the UK.

So they just referenced on the OS map contours ??

Not sure what they reference .. what Garmin software (or maps, or
whatever) are you talking about??

Quoted message said:

Quoted message said:

> I use FUGAWI and I think the data is pretty poor.

If I draw around a hill, along the same contour, the gradient profile
is variable in ht, significantly. Obviously there should be no ht gain.

Ah, in that case Tracklogs (and probably Fugawi) are deriving height
data for points along the track from the DEM (Digital Elevation Model)
database, which (unless they bought the good stuff from the OS, which I
bet they didn't - tracklogs certainly didn't - not least because the OS
wants paying again every year afaik) is just repackaged NASA SRTM data.

Now if you'd trace round one of the contours =derived= from the NASA
(e.g. the ones on the SMC website) you'd likely get zero height changes
as measured by Fugawi/Tracklogs/etc. If you trace round a 'real'
contour, then everywhere it diverges from the 'derived' contour you'll
get a height change (error).

I just tried this with Anquet. I used the 950M line on Schiehallion,
which gave me a circuit of 3.27 KM and a total ascebt of 96M. It might
be possible reduce this total ascent slightly by adding more nodes.

Anyone care to try this with Fugawi, Tracklogs or Memory Map for a
back-to-back comparison?

druidh