F11 - Full screen
F11 - Normal view
Previous walks Full Screen Viewing Links Weather
to go back pages
Calibrate Your Computer Display Online For Optimal Viewing
Dartmoor National Park Authority DNPA Blog Dartmoor Preservation Association DPA Blog
Dartmoor Tinworking Research Group Prehistoric Monuments of Dartmoor Dartmoor Crosses
Dartmoor Society Dartmoor Online Dartmoor Walker Dartmoor Walks Divine Dartmoor Walks
Dartmoor Pony Heritage Trust Legendary Dartmoor Archaeology Data Service Megaliths
Tour-by-Tor Legendary Dartmoor's tors page The Tors of Dartmoor Dartmoor tors & trig pillars
Cut Hill stones older than Stonehenge RAF Harrowbeer The Modern Antiquarian - Dartmoor
BGS Geology of Britain Viewer Map of Dartmoor Rocks and Geological Timeline Simon Dell MBE
Dartmoor News Prehistoric Dartmoor Walks Johnie's Meanderings Moorland Guides Pastscape
Campaign for National Parks Flood risk - Environment Agency (click in to a recording station)
Dartwalker's Blog Legendary Dartmoor on Facebook A Dartmoor Blog (NT General Manager)
Archaeological Data Service Dartmoor Trust Dartmoor Archive Two Blondes Walking
DNPA "Land of Granite" film Museum of Dartmoor Life Dartmoor Farmers
Dartmoor CAM Daily My Dartmoor Walks Active Dartmoor
Heritage Gateway Dartmoor Mires Project
BGS Coordinate Converter
Useful links for identifying wildlife
British Wild Flowers Trees - Nat.Hist.Mus. Lichens Liverworts & Mosses Ferns Fern ID
Photo Flora of the Devon & Cornwall Peninsula Identify plants online Orchids Nature Spot
Seasonal Wild Flowers British Dragonfly Society UK Butterflies UK Moths British Moths
Butterfly Conservation Wild About Britain iSpotNature UK Safari Plantlife Insects
Phillips Mushrooms Fungi World First Nature - Fungi Backyard Nature (American)
Spiders Floral Images Plant Identification (Skye) Plant Press
Tip - Press F5 to see
the latest changes to
this web page.
This walk: 2015-7-1. Prewley Moor Ice Works, Sourton Tors, triangulation pillar, thufurs (correct), pony, Meldon Reservoir, Lake Viaduct, So/B boundary stone, long boundary ditch, dew pond, apple crusher, Greep Quarry, cotton grass, Water Treatment Works.
Walk details below - Information about the route etc.
Old maps .....
Ordnance Survey, Six-inch to the mile - 1888-1913
Where we walked: Google Satellite view of the area - including the GPS track of the walk (compare with the Ordnance Survey map plus track below)
try zooming in with the mouse thumbwheel and "dragging" the map to see points of interest
click on the blue place-markers to read their label - they are most accurate at the highest zoom level
"mousing" over the list of placemarks on the left of the screen, highlights their place on the map
use browser back arrow or Alt key and left-arrow cursor key together to return to normal web page.
Previous walk in this area: 25th March 2009, 1st Feb. 2012 & 5th June 2013
Approaching the Ice Works through the front entrance - in fact, the only entrance?
Looking up the approach into where the ice store used to be.
Examples of holes drilled by the rockworm .....
Outline of a large pit or possibly a roofed building, said to be insulated with hay and bracken ..... the ice came from nearby long reservoirs, filled by streams (see the movie below). The ice was transported by horse and cart to fishmongers in Plymouth . The enterprise started around 1875 and operated intermittently for about ten years .....
Looking the other way, seemingly part of a small building .....
The group leaving the pit area .....
A short reservoir adjacent to the pit area .....
Google Earth image: there appear to be five long reservoirs and a short one (marked by the mapping pin). The pit area with remains of building structures is approximately in the centre of the image with a long pile of spoil earth leading just east of north and the old approach track going out towards the top-left.
movie. TIP .....
A torn around panorama of the ice works site.
Zoomed view to Meldon Reservoir.
Sourton Tors, SX 543 898, elevation 440 metres (1443 feet), known as East Tor locally because that is where it is, from Sourton!
A rockworm nest? Any guesses?
The triangulation pillar on the tor - this was taken during the 'recce' on 11th June when we estimated the wind up here to be the equivalent of putting your head out of a car window when travelling at 60 mph - very strong! .....
He is not kidding!
Anyway, after Ron blowed away .....
There was a fair view of the surrounding countryside.
A backward look.
A pony backed up to a rock for shelter - it was quite breezy up here today on the walk ......
Concentrating on the pony - tending towards a Palomino-type with a white blaze (Palomino images).
Unknown relict, possibly a tinners trial pit?
AHA! We know what these are now, don't we?! Thufurs, indicating that Dartmoor was certainly periglacial during one era in the past, suffering seasonal frost soil cryoturbation at the end of the last ice age. Encyclopaedia.com definition..
Standing near the head of Deep Valley, also known as Withecombe Bottom.
Zoomed view to Lake Viaduct (Youtube movie).
Boundary stone at SX 54464 89516 between Sourton (So) .....
..... and Bridestowe (B) .....
Showing the context of the stone -
"At the southern end of the deep boundary ditch and reave at the head of Deep Valley stands a boundstone inscribed ‘B/So’, the stone and ditch marking the boundary between Bridestowe and Sourton Commons, the land to the east shared by both parishes, that to the west being the preserve of Sourton only. North of this point, the area of land encompassed by the ditch (P460) and the modern parish boundary line is known as The Triangle, an area rescinded to Okehampton parish following a boundary dispute at a now unknown period prior to the mid nineteenth century. It has been suggested that the boundstone here marks the former site of Iron Gates, or Iron Catch Gate, itself a former bondmark of the parishes, but the true location of the gate is disputed (q.v. grid square 5490)."
Source: Mike Brown's CDROM "Guide to Dartmoor", 2001.
Dew pond and Sourton Tors.
Section of the deep boundary ditch.
The usual suspects!
Apple crushers at SX 54642 89599, half, damaged. It is said that they were always made in two halves, is that correct?
Them again .....
Another section of the deep boundary ditch: whoever dug this did a lot of work.
The top end of Greep Quarry .....
Stone from the quarry was used to build Sourton vicarage, the Wesleyan Chapel and other Victorian buildings.
Another view into the quarry.
Zoomed view to Meldaon Dam, built 1972.
Another claimed site for Iron gate - at least it appears to be a gatepost. Iron Gate is claimed to be at several locations in this area, the King Way. This was a 15½ mile track between Tavistock and Okehampton. In 1720, a regular post boy route was established to carry "the King's Posts" from London to Plymouth. Source: "Track 11: The King Way" in Eric Hemery (1986), Walking Dartmoor's Ancient Tracks: A guide to 28 routes, Robert Hale, London, pp. 123-140.
South West Water's Prewley Water Treatment Works .....
A form of creeping "buttercup" with leaves superficially like pine-needles!
One of the bog cottons or cotton grasses: either Common cotton grass, Eriophorum angustifolium, with several seed heads, or Hare's tail cotton grass, Eriophorum vaginatum, with a single seed head.
This flower looks a lot like wood sorrel, Oxalis acetosella, but in a bog situation?
As previous - must remember to include leaves although that was difficult here .....
As previous photograph.
MAP: Red = GPS satellite track of the walk.
Licence number 100047373
© Crown copyright and database rights 2015. Ordnance Survey
This walk was reached from the A386 after passing through Sourton, towards Okehampton, and turning right at the next opportunity before end of the straight stretch of road at a brown tourist sign (on the left, opposite the turning) for the "Granite Way" and parking beside this road, marked by the yellow cross on the map.
Distance - 4.33 km / 2.69 miles.
All photographs on this
web site are copyright ©2007-2015 Keith Ryan.
All rights reserved - please email for permissions
Sister web sites
Dartmoor Tick Watch
The Cornish Pasty - The Compleat Pastypaedia