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US Bench Marking


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quote:
Originally posted by Lost in Space:

We could have it based on Trig points, and if we placed a cache there, could call it "Trig Point Tat"


 

If that is an attempt at sarcasm please save it for somewhere else... The thread concerning cache contents was opened for people to air their opinions, if you can't control the urge to make skittish comments at least make them in the correct thread.

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The data for every OS marker in the UK is freely downloadable from the Ordnance Survey's website. Sad that I am (and thanks to a fast internet connection at work) I created an Excel spreadsheet of every single one, which I planned to use to plant a few virtual caches in my area.

 

This new element of the game will save me having to do this. Come on Jeremy, get the UK up and running! icon_biggrin.gif

 

Team Tate

 

Remember - if it's moving, it's not dead...

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quote:
Originally posted by Jeremy Irish:

Add lat/lon to that spreadsheet and I'll add them in there. Somehow...

 

Jeremy

 

Jeremy Irish

Groundspeak - The Language of Location


Hurrah!

 

Team Tate - let me know if you need help adding WGS84 references to the spreadsheet (if they are not already there - can't get my login to gps.gov.uk to work at them moment to check)

 

Chris

"We're not lost - we just don't know where we are"

London & UK Geocaching Resources: http://www.sheps.clara.net

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It's the datum that the OS use that is giving me the problems.

 

They use the OSGB36 National Grid datum which is different to our beloved WGS84. If anyone has a conversion programme for this we will be onto a winner.

 

Team Tate

 

Remember - if it's moving, it's not dead...

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Rather than carry on stuggling I thought I would get the information from the horses mouth (the horse being the 'Ordnance Survey')

 

I have spoken to a helpful lady on their helpline who said she will look into how to convert the datums easily. As soon as I hear back from her, I will let you all know.

 

Team Tate

 

Remember - if it's moving, it's not dead...

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Can Chris Shepherd's conversion spreadsheet be used or some of the macros from it be modified for the purpose ?

 

no,forget it , on looking at it it doesn't go that way ....

just done some browsing

this looks as if it could be usefull

 

http://www.anotherurl.com/mapping/OSGB_Convert.htm

 

[This message was edited by page28 on May 16, 2002 at 05:52 AM.]

 

[This message was edited by page28 on May 16, 2002 at 06:06 AM.]

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quote:
Originally posted by page28:

Can Chris Shepherd's conversion spreadsheet be used or some of the macros from it be modified for the purpose ?

 

no,forget it , on looking at it it doesn't go that way ....[This message was edited by page28 on May 16, 2002 at 06:06 AM.]


 

Current Version does (down the bottom of the screen).

 

Chris

"We're not lost - we just don't know where we are"

London & UK Geocaching Resources: http://www.sheps.clara.net

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quote:
Originally posted by Finger:

I have just been on the OS site but I could not find the List of OS markers.

 

Please can someone post the link - It looks like I am being particularly stupid (Again !!)

 

Thanks in advance.

 

Finger

(UK Charter Member)


 

You need to go to www.gps.gov.uk and register first. Then you can see it.

 

Chris

"We're not lost - we just don't know where we are"

London & UK Geocaching Resources: http://www.sheps.clara.net

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quote:
Originally posted by Kimrobin:

...and not a Charter Member, you can still view the "invisible" forum about US Bench Marks.

 

Try going to

http://opentopic.Groundspeak.com/0/OpenTopic?a=frm&s=1750973553&f=5790959854

 

Alex.


 

Just tried the link and got a 'You have not been given the security rights' error.

 

Can someone who is a charter member do a quick overview of the US Bench Marks discussion on here so that us lowly geocachers know what this thread is all about? icon_biggrin.gif

 

Regards,

 

Richard

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errrr.gif Right folks we have a choice, we can either have:

 

1. Around 200 points that are guaranteed to be there and publicly accesable - these are the points that makeup the static GPS network.

 

2. Around 6200 points that are not guaranteed to still be there (though the thought of someone stealing a trig point is quite strange) and may not be on public land. These make up the old survey network which is not now maintained.

 

How do we want to play this game ?

 

Chris

"We're not lost - we just don't know where we are"

London & UK Geocaching Resources: http://www.sheps.clara.net

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We can't get more than 200 verified points due to only having 6 figure references for the rest, (6 figures is 100meters square).

How about we combine the two lists with those that are not verified having "*Not verified" after the name. That way you get loads more targets and we can have found/not found just like real caching...wadayafink 526.gif

 

Chris

"We're not lost - we just don't know where we are"

London & UK Geocaching Resources: http://www.sheps.clara.net

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quote:
Originally posted by Chris n Maria:

We can't get more than 200 verified points due to only having 6 figure references for the rest, (6 figures is 100meters square).

How about we combine the two lists with those that are not verified having "*Not verified" after the name. That way you get loads more targets and we can have found/not found just like real caching...wadayafink http://www.scubaboard.com/images/smilies/526.gif

 

Chris

"We're not lost - we just don't know where we are"

London & UK Geocaching Resources: http://www.sheps.clara.net

 

I would go with the 200 initially but there is more enjoyment factor in going out to verify if one of the old survey network is still there....and then catalogue it with photo.

 

I believe that the current one's have a photo and/or sketch

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quote:
Originally posted by Chris n Maria:

We can't get more than 200 verified points due to only having 6 figure references for the rest, (6 figures is 100meters square).

How about we combine the two lists with those that are not verified having "*Not verified" after the name. That way you get loads more targets and we can have found/not found just like real caching...wadayafink


 

Sorry that makes things a little unclear - let me try again:

we have 200 locations which are out there, you can get to them and we have exact co-ords for (we have another 400 with only 6 fig references). The other 6000 we have exact WGS84 co-ords for, only it's not been established wether they are still there or not and if it's possible to get to them or not. So aiming for these ones makes it a similar kinda game to Geodashing.

Is that clearer?

 

Chris

"We're not lost - we just don't know where we are"

London & UK Geocaching Resources: http://www.sheps.clara.net

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quote:
Originally posted by Geo Badger:

Sorry but i am totally lost icon_frown.gif what are these points etc you are all talking about used for i am quite intrigued now?!?

 

Dan Wilson (Team Dan and Pid)


Love the new name by the way icon_biggrin.gif

 

A trig point is a mark that the ordnance survey use to triangulate from to create maps (though this has all been replaced by GPS based mapping). They are a concrete lump with a three pointed brass thing embeded in the top. There is one on the top of Combe hill in front of the monument. You might have seen it through the snow when you were up there icon_biggrin.gif

 

Chris

"We're not lost - we just don't know where we are"

London & UK Geocaching Resources: http://www.sheps.clara.net

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quote:
Originally posted by Jeremy Irish:

Add lat/lon to that spreadsheet and I'll add them in there. Somehow...

 

Jeremy

 

Jeremy Irish

Groundspeak - The Language of Location


 

Just sent the file (GEN-020517.28917

) to you to see if you can do something with it.

 

Chris

"We're not lost - we just don't know where we are"

London & UK Geocaching Resources: http://www.sheps.clara.net

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Believe it or not there are other crazy people icon_biggrin.gif (non-geocachers) out there looking for these things. This site has some handy info, and details the ones they've found so far, with details of whether they still exist and whether they are accessible or not.

 

http://nmc-ramblers.org.uk/cgi-bin/trig/register.php

 

Maybe if we get in touch with them we could share info. Might even convert a few more to the geocaching cause. icon_wink.gif

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quote:
Originally posted by Two Bears:

Believe it or not there are other crazy people icon_biggrin.gif (non-geocachers) out there looking for these things. This site has some handy info, and details the ones they've found so far, with details of whether they still exist and whether they are accessible or not.

 

http://nmc-ramblers.org.uk/cgi-bin/trig/register.php

 

Maybe if we get in touch with them we could share info. Might even convert a few more to the geocaching cause. icon_wink.gif


 

Thanks,

 

I'll mail them - see if we can help each other.

 

Chris

"We're not lost - we just don't know where we are"

London & UK Geocaching Resources: http://www.sheps.clara.net

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quote:
Originally posted by JasonW:

Don't forget that any that are in Scotland are automatically accessible (unless on restricted Military land) as there's a right to roam there - how civilised.


 

There are other factors to take into account than the legal right of way. I think a grouse moor after 12th August would be an unhealthy place to be.

 

-------

jeremyp

The second ten million caches were the worst too.

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