Buckingham
Hitchin
Stevenage
HS2 line
Luton
Tunnel
M25
High
Wycombe
Watford
London
Euston
Slough
London
M25
10km
10 miles
Detail
M25
10-mile tunnel
through Chiltern
hills
Site of the Western Slopes new reserve
Tunnel
entrance
M25
Ruislip
Common
Gerrards
Cross
Two-mile viaduct
spanning Colne Valley at
Denham country park
M40
M40
Uxbridge
3km
3 miles
M25
Buckingham
10-mile tunnel
through Chiltern
hills
Hitchin
Site of the Western Slopes new reserve
Stevenage
HS2 line
Luton
Tunnel
M25
Tunnel
entrance
High
Wycombe
Watford
M25
Detail
Ruislip
Common
London
Euston
Slough
Gerrards
Cross
Two-mile viaduct
spanning Colne Valley at
Denham country park
London
M40
Woking
M40
Uxbridge
20km
3km
M25
20 miles
3 miles