Data-Mining Triangulation, Levelling and Geospatial Data

Interested in these features for your site?

See what's available in the sitemap. Please sign the Guestbook.    Quick Co-ordinate Links?:

This website is dedicated to the study of Triangulation & Levelling, all things maps and locating points of interest.

Whats New for 2005
· Map of Principal Triangulation for the Ordnance Trignometrical Survey of Great Britain and Ireland ·
· Splitting off the Location based stuff to a new website: is nearly complete ·
· Re-Launch of a New Information website: ·
· Maps of Primary Triangulation of Great Britain, Secondary Re-Levelling of London, Postcode Statisitcs ·
· Have a Say on What You like to See on TrigTools!

Location Search
Search for TrigPoints, Wall Flush Brackets, Passive Stations, FBM's, Walks and more!

Feature Search
Search for Webpages containing refernces to a Grid Reference (Ireland Too!)

Looking for Something?New! - Directory of Websites offering location searches

Flush Bracket Numbers (Trigpoint and Wall Brackets), FB Browser and
Search by Name

TrigPoint Search
unknown spelling search
Irish Triangulation Pillars Levelling Website Fundamental BenchMark (FBM) List
TrigPoint Search
also Trigpoints by proximity
Irish Trig Points
Exclusive! Also Primary Trigs
Levelling Website
(see Whats New or 2GL)
FBM List
(including Tide Guages)
Timeline Map Websites Co-ordinate Converter

of OS events
Map Websites
UK Interactive Map
Co-ordinate Converter & Links Links & Sources
See also my TrigTools Section on T:UK, which has some interesting information on trigpoints.
and CacheTools Section on G:UK which is a similar spinoff for UK Geocaches

Have some ideas of your own? then look in the Whats Next section.

Please View & Sign the Guestbook, or checkout the General Links Section

If you are interested in any of the features seen on this site then see the Services Page

Site Search:

or Search the Web:

If looking for a named feature try the Gazetteer, Name Search or fuzzy TrigPoint Search

( Home | Location Search | Levelling | Coordinate Converter | Map Sites | Summary | Links )

This page created by Barry Hunter (c)2004 part of TrigTools
If interested the background is Moel Oernant
Uses Various Sources of Data. Hosted on