25162 Misbourne River1.Cdr
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Chilterns Chalk Streams Project M1 The River Misbourne The Chilterns Area Dunstable The River Misbourne rises above Great Missenden in the Chilterns Area of Outstanding of Outstanding Natural Beauty (AONB) Luton Natural Beauty. It flows for 17 miles (27km) through Little Missenden, Amersham and the The Chiltern Hills were designated an AONB in 1965, Walks in the Misbourne Valley Chalfonts to Denham, where it meets the River Colne. recognising that the Chilterns countryside is among the finest in England. The AONB covers Tring Ver to Aylesbury 833 sq. km and stretches from Aylesbury Three circular walks A Chiltern Chalk Stream Wendover A413 Goring on Thames in Oxfordshire, Gade The Misbourne is a chalk stream - an internationally rare Berkhamsted Hemel across Buckinghamshire and Hempstead celebrating the return of the River Misbourne wildlife habitat. Its water is pure and clear, having been Princes Bulbourne St Albans Walk 1 Risborough Misbourne Bedfordshire to Chesham Great Missenden filtered through the underlying chalk, making it Prestwood Hitchin in Hertfordshire. M40 Amersham Hyde Heath ideal for drinking. Hughenden River Misbourne Stream Chesham Bois We take our water from the River Thames Chess Little Kingshill High same source that feeds chalk Wye Hambleden Wycombe Beaconsfield Little Missenden Amersham streams. Wallingford Brook Chalfont & Unfortunately Walk 2 Latimer Marlow AMERSHAM Holmer Green To London this has caused A404 (Marylebone) M25 Little problems for the Henley-on-Thames Chalfont Misbourne, which Goring River Thames has always flowed The Chilterns [ intermittently. Countryside Code A413 A355 Enjoy, care for and learn about the Chilterns Why do chalk streams Chalfont Respect countryside activities, such as farming and forestry St Giles flow intermittently? Keep to public rights of way Chalfont St Peter Leave all gates as you find them Chalk streams are mostly fed from Walk 3 Please keep the route tidy and take your litter home groundwater rather than surface runoff. The To High Wycombe A412 Show respect to other users of the countryside underlying chalk soaks up water like a sponge. M25 Gerrards C Try and visit the Chilterns without using your car Cross R a This water bearing rock is called an ‘aquifer’. i n v e a r l Please do not pick wildflowers A40 Groundwater emerges from it as springs to feed the C o l n Support the local economy and buy local products and services Denham e stream. Since groundwater levels in the aquifer Golf Club fluctuate according to rainfall and season, chalk streams Denham For further information contact the Chilterns AONB Office, are naturally intermittent in their flow. To London (Marylebone) 8 Summerleys Road, Princes Risborough, Bucks HP27 9DT M40 Tel: 01844 271300 Fax: 01844 271301 E-mail: [email protected] During the winter months when rainfall is able to percolate through the chalk, the aquifer will be well topped up. The head Walk 1 (3 miles/5km) of the stream moves up the valley as the water table rises. In summer, rainfall does not percolate into the chalk as it is taken up by Chiltern District Council Walk 2 (4¾ miles/7½ km) plants and lost through evaporation. The water table drops and the head of the stream moves down the valley, leaving the top section of the stream dry. This top section is called a Walk 3 (10 miles/15km or 6 miles/10km) 'winterbourne', because it only flows after the winter rains. Interpretation by [email protected] Illustrations by Richard Allen Produced by the Chilterns Conservation Board An Area of Outstanding Natural Beauty Interest points Rescuing the river Walk 1: Now you see it, now you don't Numbered anti-clockwise from the start Over the course of the 20th century a series of pumping stations was opened to tap the high A 3 mile (5km) circular walk around Great Missenden quality groundwater for the public and Allow about 1¾ hours walking time 1 As you walk towards Mobwell Pond see if you can see the river on your left. This is the industrial supply. Water demand has winterbourne section (see explanation under The River Misbourne). Mobwell Pond is said to increased over the years and the level of water abstraction rose to meet this The start. Great Missenden be the source of the Misbourne. However, it has been known to start above this point at Rignall Farm, as prior to World War I a boy could earn a penny or two pumping the farmer’s demand. This affected river flows and in By train: Great Missenden station kitchen dry. drought years the river often dried up is on the Marylebone to Aylesbury along much of its course. Thus a river that Chiltern Line. See the map PH 2 At the top of the field look back at the typical Chiltern landscape, one of rolling chalk had once supported fishponds, mills, for the route to the start 2 Mobwell Pond hills, clumps of beech woodland, and arable and pastoral farmland. plentiful wildlife and recreation of the walk. A 4 disappeared. 1 Roe Deer 3 On leaving Angling Spring Wood you look down on Great Missenden. In the last 100 By car: Leave the A413 at 3 years, Great Missenden has changed from a small village centred on farming and cottage Great Missenden roundabout. Start Mobwell Pond industries to the busy, much larger commuter settlement that you see today. Continue for 200 yards down (Link Road) The River Rescue Scheme Link Road and park in the 2 In 1990 the National Rivers Authority declared that the River Misbourne was one of the 20 4 At the end of the unmade residential road you come across the oldest inn in the village, car park on the right. 1 worst affected rivers nationally through over abstraction. A Rescue Scheme was developed P The George. This timber-framed building was once the court house. Once in the High Street Note the interpretation wc by the Environment Agency, Three Valleys Water and Thames Water Utilities. you will see other buildings up to 450 years old. panel about the Misbourne on the 7 In 1997 Phase 1 of the scheme began with the building of a new pipeline from the Colne Sta 5 From the bridge at Warren Water you look towards Missenden Abbey. This building is public convenience Sch Valley to Amersham pumping station. This pipeline brought groundwater for the public GREAT on the site of the original abbey, founded by Sir William de Missenden in about 1133 and used building Church of supply from sources that were environmentally sustainable. Abstraction was then reduced at MISSENDEN 4 St Peter & Paul as a monastery for 400 years. The Abbey was tragically gutted by fire in 1985, but has been George key pumping stations in the valley, allowing groundwater levels to gradually recover. The Angling Spring Inn restored and is now a conference and adult education centre. The area to the south of Warren Wood first phase of the rescue scheme has been completed. The river is now being monitored to see Water is open access land - you may wish to explore. Missenden 6 if a second phase of work will be needed. 3 Abbey 6 When you reach the road, you may like to visit the Church of St Peter & Paul. Turn right 5 Warren use water wisely It must always be remembered that the Misbourne is a chalk Sch Water and walk up over the bridge. The church dates back to the medieval period and has 8 bells, the stream that may dry up in periods of low rainfall. We can help oldest dating back to 1692. keep the Misbourne flowing by using water wisely e.g. by Open collecting rainwater in a butt for garden use and by having Access 7 The river runs underground here where it has been showers instead of baths. 1km 1mile culverted. It may be possible to open it up for wildlife [ and people. Do you think this should happen? Walk route (please note that this route is not waymarked) These walks are dedicated to the memory of Vic Wotton, who tirelessly campaigned for the recovery of the River Other public rights of way Misbourne. Refreshments There are a number of pubs and restaurants in Great Missenden and at Mobwell Pond Church of St Peter and Paul Walk 2: Traditional Chiltern industries AT 4¾-mile HE(7½ km) circular walk throughA LittleLBAN Missenden TRAIL Allow about 2 ½ hours walking time The start Either start at Shardeloes (Start 1) or in Little Missenden (Start 2) By car: For Shardeloes come off the A413 at the roundabout north west of Amersham Old Town, and take the exit signposted to Shardeloes. Go down the hill and park in the lay-by on the right. You will see the South Bucks Way signpost next to the post box. Walk into the Amersham Cricket Club and follow the map. Manor House & For Start 2 in Little Missenden, park near the Church of St John the Church of St John Baptist. Turn left out of the church and then right up the lane the Baptist Mill House opposite the Manor House. After the last house, take Shardeloes Lake, showing some of the many birds you can see PH the footpath into the field on the left and walk 3 P PH up the hill past the lone tree. Interest points 2 Numbered anti-clockwise from Shardeloes 3 Little Missenden remains a true English village with a church, manor house, pubs, farms Start 2 LITTLE A and cottages. Before reaching the church, you will pass a Jacobean Manor House on the right. MISSENDEN 413 th So 1 You are in Shardeloes parkland, which was laid out by Humphrey Repton in 1793.