Skip to search.

Breaking News Visit Yahoo! News for the latest.

×Close this window

trigonomy
  • Members Only
  • Messages
  • Post
  • Attachments
  • Files
  • Photos
  • Links
  • Calendar

The Yahoo! Groups Product Blog

Check it out!

Group Information

  • Members: 402
  • Category: Hiking
  • Founded: Sep 17, 2002
  • Language: English
? Already a member? Sign in to Yahoo!

Yahoo! Groups Tips

Did you know...
Real people. Real stories. See how Yahoo! Groups impacts members worldwide.

Home

  

Activity within 7 days:

(No Activity)

Description

This group is for discussion relating to Ordnance Survey triangulation pillars, flush brackets, bench marks, and other Ordnance Survey structures. The emphasis is on the historical and technical aspects, and on maintaining lists of pillars and related structures.

Photo: Elsworthy, Exmoor (grid ref SS812415) 'S5034'.

Message History

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2013 53 75 54 34 26
2012 54 122 26 41 10 83 322 141 106 53 63 31
2011 132 89 25 74 29 23 6 16 125 315 180 216
2010 64 92 42 25 11 21 26 116 30 73 97 84
2009 14 2 28 21 44 34 126 70 46 25 50 53
2008 78 28 21 30 24 11 10 46 38 17 14 9
2007 50 34 18 28 38 11 10 22 16 9 11 30
2006 63 68 58 30 28 10 26 19 12 27 31 37
2005 120 21 10 17 20 48 28 42 21 24 23 45
2004 17 14 17 42 16 38 133 208 101 64 56 66
2003 26 27 16 13 23 25 22 16 35 9 9 23
2002 14 69 62 30
Copyright © 2010 Yahoo! Inc. All rights reserved.
Privacy Policy - Terms of Service - Guidelines NEW - Help