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Triangulation Pillars The concrete pillars installed 1935-1962 - that are now a familiar part of our nations countryside. The are situated within line of sight of each other so that accuate measurements can be made. They usually sport a uniquly numbered FB which is what make them collectable.	Name (and link)	Coverage
	TrigpointingUK.com [6550]	Map
	Trigonomy - Yahoo Group [6546]	Map
	Extinctions.xls (Trigonomy) [534]	Map
	DatesBuilt.xls (Trigonomy) [591]	Map
	OSBM - MSN group [Live]	Map
	Chris n Maria's Trig Point List [6282]	Map
	Triangulation Pillar Waypoints [6557]	Map
	GRP's Landrangers List [7488]	Map
	Passive Station Database [224]	Map
	FB Listing [6510]	Map
Wall Flush Brackets FB's are used as an exact marker of height. They were installed along levelling lines, which criscross the country to form a netword of precisly measures locations. (most Trig points also sport a FB, but arent included in this list)	Name (and link)	Coverage
	Bench-Marks.org.uk [10126]	Map
	OSBM - MSN group [Live]	Map
	NPFB_MSN.xls [1858]	Map
	2GL Transcription [3073]	Map
	FB Listing [462]	Map
Passive Stations Passive Stations replace (or in somecase reuse) Trig Pillars and FBM's, to give accurate markers for use in the modern era of GPS measurement	Name (and link)	Coverage
	Passive Station Database [576]	Map
	FBM List [110]	Map
	TrigpointingUK.com [541]	Map
Fundamental Bench Marks FBM's form the main junctions of the Levelling networks, to give an even more permentant record of height. They are installed in locations unlikely to be disturbed by man or nature.	Name (and link)	Coverage
	FBM List [199]	Map
	Passive Station Database [83]	Map
	TrigpointingUK.com [200]	Map
	Bench-Marks.org.uk [198]	Map
	2GL Transcription [212]	Map
Tide Guages A network of Guages installed around the coastline to monitior Sea Level Change.	Name (and link)	Coverage
	FBM List [130]	Map
Hills Included in this database are the major hills, useually ones that have been given a classification such Munro, Hewitts or County Tops.	Name (and link)	Coverage
	Database of British Hills [3319]	Map
	UK Hills Database [2490]	Map
	The Mountains of England and Wales [1113]	Map
Geocaches Geocaches are small containers dotted around the country for other GPS users or geocachers to hunt for and usually swap small items.	Name (and link)	Coverage
	UK Geocache Database [Live]	Map
Photos Photos taken as part of a national project to photograph every grid square	Name (and link)	Coverage
	GeoGraph.co.uk [204979]	Map
Milestones Usually stone markers at the side of the Road, used to provide distances to comman destiniations, now largely replaced my modern maps and GPS.	Name (and link)	Coverage
	MilestonesWeb.com [1103]	Map
	MilestonesOnline.co.uk [240]	Map
Ports Ports around the GB Coast	Name (and link)	Coverage
	ports.org.uk [807]	Map
Lighthouses	Name (and link)	Coverage
	arlhs.com [1114]	Map
Castles Details of many Castles including ones with little visible remains	Name (and link)	Coverage
	List by Wizard [4609]	Map
Motorway Junctions A list of moterway junctions, useful to know how to get to a location	Name (and link)	Coverage
	Motorway Junctions [574]	Map
Follys Monuments or buildings built for no other reason than its possible!	Name (and link)	Coverage
	follytowers.com [280]	Map
Historics	Name (and link)	Coverage
	MapperGB [1026]	Map
Megaliths Acient monuments and stone circles to be found arround the country	Name (and link)	Coverage
	Megalithic.co.uk [Live]	Map
	Megalithic Walks [365]	Map
	Megalithia.com [124]	Map
Walks Records the starts of a number of interesting walks around the country.	Name (and link)	Coverage
	WalkingWorld.com [1862]	Map
Fords Locations of some of the most interesting locations where rivers cross roads.	Name (and link)	Coverage
	WetRoads.co.uk [1638]	Map
Caves	Name (and link)	Coverage
	cavedatabase.co.uk [1333]	Map
Mines A small list of Slate Mines in North and Mid Wales	Name (and link)	Coverage
	Slate Mines [48]	Map
Radio Transmitters Database of Radio and Television Transmitters - they are often a prominent landmark so can be useful for navigation, also use to align you receiver aerial.	Name (and link)	Coverage
	BBC Database [1453]	Map
Web Results An experiment of search engine that attempts to index webpages by Grid References contained in them!	Name (and link)	Coverage
	Web Results [20974]	Map