PowerPoint presentation for my Gold DofE expedition presentation

Man's impact on the environment

Transcript

1. Man and the Environment Gold DofE expedition project presentation
2. Where? • Our expedition was located in The Black Mountains (Y Mynyddoedd Duon) which is a mountain range between Crickhowell, Abergavenny and Hay-on-Wye. • It is on the border with England and is part of the Brecon Beacons National Park 2 20 June 2019
3. Grwyne Fawr Reservoir SO 22870 30895 3 20 June 2019
4. Grwyne Fawr Reservoir • Pre-WW2 • 1800 megalitres • Supply water to nearby growing population • Required local infrastructure investment • No longer in use 4 20 June 2019
5. Grwyne Fawr Reservoir • Constructed to minimise impact to environment View along ridge from where we could see the reservoir 5 20 June 2019
6. Geology Waun Fach (811m) Pen Allt-mawr (720m) Pen Cerrig-calch (701m) Crug Mawr (451m) 6 20 June 2019
7. Geology • Old red sandstone • UK, Ireland, Norway, Atlantic 7 20 June 2019 Cross-section of old red sandstone from Central England Raglan Castle – built with old red sandstone
8. Quarries • Many small quarries • History of quarries from the 19th century • Commercial use • End of quarries by 1950s 8 20 June 2019 View near Cwar yr Ystrad (SO 0812 1406), near Pontiscill Reservoir
9. Crug Hywel (Table Mountain) SO 22522 20719 9 20 June 2019
10. Crug Hywel Fort • Iron Age hillfort • “Hywel’s mound” • Remaining parts of hillfort • Classification of hillfort 10 20 June 2019
11. Cairns • Ancient stone piles, used for various purposes • Neolithic and early bronze age • Different types of cairns – mainly simple stone pile cairns in the Black Mountains 11 20 June 2019 Cairn just north of Pen Allt-Mawr
12. Cairns SO 20694 24325 SO 20653 23876 12 20 June 2019
13. Beacons Way • 159km long • Abergavenny to Llangadog • Crosses private land and open access land • Different landscapes 13 20 June 2019
14. Beacons Way Part of our route using the Beacons Way (SO 28254 23690) 14 20 June 2019
15. Tumuli • Tumuli (plural of tumulus) are found throughout the UK, and the Black Mountains • Purposes include burial grounds – especially for Anglo-Saxons (in England) • Tumuli fell out of use by 7th century – Christianity 15 20 June 2019 Tumulus near Llandysul in Ceridigion
16. Tumuli SO 19461 33157 16 20 June 2019
17. Thanks for listening! Any questions? Group photo near the top of Pen Cerrig-Calch