River Holford

Geobox River
name = River Holford
native_name =
other_name =
other_name1 =


image_size =
image_caption =
etymology =
country = England
country1 =
state = Somerset
state1 =
region =
region1 =
district =
district1 =
city = Holford
city1 =
landmark =
landmark1 =
length_imperial = 4.5
watershed_imperial =
discharge_location =
discharge_imperial =
discharge_max_imperial =
discharge_min_imperial =
discharge1_location =
discharge1_imperial =
source_name = Lady's Fountain Spring, Frog Combe
source_location = Halsway
source_district = Quantock Hills
source_region =
source_state = Somerset
source_country = England
source_lat_d = 51
source_lat_m = 8
source_lat_s = 20
source_lat_NS = N
source_long_d = 3
source_long_m = 12
source_long_s = 56
source_long_EW = W
source_elevation_imperial = 820
source_length_imperial =
mouth_name =
mouth_location = Kilve
mouth_district =
mouth_region =
mouth_state = Somerset
mouth_country = England
mouth_lat_d = 51
mouth_lat_m = 11
mouth_lat_s = 34
mouth_lat_NS = N
mouth_long_d = 3
mouth_long_m = 13
mouth_long_s = 37
mouth_long_EW = W
mouth_elevation_imperial = 0
tributary_left =
tributary_left1 =
tributary_right =
tributary_right1 =
free_name =
free_value =


map_size =
map_caption = The River Holford is located in the east Quantocks hills Area of Outstanding Natural Beauty in Somerset.

It is approximately convert|4.5|mi|km|0|lk=on long. Its source is at Lady's Fountain Spring, Frog Combe gbmappingsmall|ST150384 which is near Halsway and 250 m above sea level [cite web |url=http://www.field-studies-council.org/outdoorclassroom/programmes/geography/alevel/coremodules/NC/Fluvialprocesses.aspx |title=CORE Day 1 - Understanding Fluvial Systems |accessdate=2007-11-16 |format= |work=Field Studies Council ] before flowing past Holford towards its mouth at Kilve gbmappingsmall|ST143444.

The river is used as an outdoor classroom for students of Fluvial Geomorphology. [cite web |url=http://www.field-studies-council.org/outdoorclassroom/16plussearch/courseinfo.asp?no=82 |title=Fluvial Geomorphology (River Holford) |accessdate=2007-11-16 |format= |work=Field Studies Council ]

The geology of the river consists of three different rock types at the top of the river there is the Devonian Quartzite(Metamorphic), in the middle of the river there is the Permo-Triassic Marl(Sedimentary) and the lower part of the river consists of Jurassic Limestone(Sedimentary). The first two rock types are impermeable meaning there is little drainage for the river but the river depth becomes smaller as the water flows of the permeable limstone which will allow water to pass through. Quartzite is also very resistant to chemical weathering and can form ridges.

References

External links

* [http://www.quantockonline.co.uk/quantocks/villages/holford/river_holford01.html Holford River from Quontocks Online]