C21

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C21 may refer to

Route	Highway Authority	Historic County	From	To	Length
C21	South Ayrshire	Ayrshire	Coylton	Kersepark	3.9 miles	View
C21	Orkney Islands	Orkney	St Margarets Hope	Kirkhouse	1.9 miles	View
C21B	Aberdeenshire	Aberdeenshire	Cairnglass	St Combs	0.6 miles	View
C21K	Aberdeenshire	Kincardineshire	Meikle Fiddes	Kinneff	7.2 miles	View
C21M		Aberdeenshire	Milltown of Campfield	Bridge of Canny	2 miles	View
C21S	Aberdeenshire	Aberdeenshire	Turriff	Idoch	4.5 miles	View
C21C	Aberdeen	Aberdeenshire	The Parkway	Whitestripes Road	1.9 miles	View
C21	West Lothian	West Lothian	Dechmont	Riccarton	3.5 miles	View
C21	Angus	Angus	Balkeerie & Eassie	Craigton	2.7 miles	View
C21	Fife	Fife	St Andrews	Strathkinness	1.9 miles	View
C21	East Ayrshire	Ayrshire	Hollybush	Council Boundary	0.6 miles	View
C21	Medway	Kent	Rochester	Borstal	1.8 miles	View
C21	Scottish Borders	Selkirkshire	Tower Street	Ettrick Terrace	0.7 miles	View
C21	Cambridgeshire Council	Cambridgeshire	Churchill Road	Weasenham Lane	1.24 km	View
C21a	Dumfries and Galloway	Dumfriesshire	Lochmaben	Elshieshields Bridge	1.6 miles	View
C21n	Dumfries and Galloway	Dumfriesshire	Over Garrel	Elsieshields	4.3 miles	View
C21w	Dumfries and Galloway	Wigtownshire	Kirkcolm	Ervie	1.9 miles	View
ZC21	Edinburgh	Midlothian	Charlotte Square	St Andrew Square	0.5 miles	View
C21	South Lanarkshire	Lanarkshire	Coulter	East Mains	0.7 miles	View
C21	East Dunbartonshire	Dunbartonshire	Twechar	Council boundary	0.2 miles	View
C21	North Lanarkshire	Lanarkshire	Queenzieburn	Kilsyth	1.2 miles	View
C21	Buckinghamshire	Buckinghamshire	Stoke Hammond	Bottledump	4.4 miles	View
C21	Stirling	Stirlingshire	Balfron	Balfron Station	1.7 miles	View
C21	Hertfordshire	Hertfordshire	Bedford Road	County Boundary	1.3 miles	View
C21	Bath and North East Somerset	Somerset	Gloucester Road	London Road	0.7 miles	View
C21	Argyll and Bute	Argyll	Tayinloan	Gigha Ferry	0.7 miles	View
C21	DfI Roads	County Antrim	Crumlin	Glenavy	4.1 km	View
C21	West Sussex	Sussex	Bognor Road A29	Ewhurst Green	4.69 miles	View
C21	Wiltshire Council	Wiltshire	Widgerly Down	Marten	5.7 miles	View
C21	Kent Council	Kent	Authority Boundary (near Wouldham)	Aylesford	8.60 km	View
C21	Dorset	Dorset	Milborne Port	Bourton	12.4 miles	View
C21	Northumberland	Northumberland	Bareless	B6350	2.1 miles	View
C21	North Yorkshire	Yorkshire	Danby (C1)	Border with Redcar & Cleveland	3.1 km	View
C21	Renfrewshire	Renfrewshire	Formakin	Bishopton	1.2 miles	View
C21	Rhondda Cynon Taf	Glamorgan	Brynna	Nant Ciwc	0.2 miles	View
C21	Nottinghamshire	Nottinghamshire	Caunton (A616)	Southwell (C1)	8.6 km	View
C21	Barnsley	Yorkshire	Dunford Bridge (C20)	Bents Road (B6106)	2.4 km	View
C21	Durham	County Durham	Eastgate (A689)	Border with Northumberland	12.3 km	View
C21	Warwickshire	Warwickshire	Danzey Green (C20)	Ullenhall (C208)	2.5 km	View
C21	West Northamptonshire	Northamptonshire	Border with Oxfordshire	Border with Oxfordshire	12.5 km	View
C21	Isle of Wight	Hampshire	Godshill (A3020)	Ventnor (A3055)	9.1 km	View
C21	Gloucestershire	Gloucestershire	Coleford (C374)	Millend (C357)	2.5 km	View
C21	Derbyshire	Derbyshire	Beeley (B6012)	Temple Normanton (B6039)	18.5 km	View
C21	Staffordshire Council	Staffordshire	Miles Green	Halmer End	0.6 miles	View
C21	Powys	Brecknockshire	Rhos-y-gilwern (C22)	C20 east of Cribarth	1.6 km	View

Key

Class III Route

Defunct Route

Future Class III

Unbuilt Class III