The River Chess is a chalk stream that rises near Chesham in the Chiltern Hills, and flows for 11 miles (18 km) through Buckinghamshire and Hertfordshire to its confluence with the River Colne in Rickmansworth. The Chess, along with the Colne and Gade, gives rise to the name of the district of Three Rivers.
River Chess at Waterside, Chesham
Looking upstream, at Chenies
River Chess, under drought conditions, at Waterside, Chesham
River Chess source Pednor Rd, Old Chesham, Feb 2021
The Chiltern Hills are a chalk escarpment in southern England, northwest of London, covering 660 square miles (1,700 km2) across Oxfordshire, Buckinghamshire, Hertfordshire, and Bedfordshire, stretching 45 miles (72 km) from Goring-on-Thames in the southwest to Hitchin in the northeast. The hills are 12 miles (19 km) at their widest.
Chalk visible in ploughed soil at the foot of the Chiltern Hill escarpment near Shirburn on the Buckinghamshire/Oxfordshire border
Viewed from The Ridgeway: eastern trailhead on Ivinghoe Beacon
Stokenchurch Gap, a cutting built to carry the M40 motorway through a section of the Chiltern Hills