OS One-Inch Old Series / First Edition Map Viewer (Sheet 25)

Ordnance Survey One-Inch First Edition Old Map of Devon: Old Series map of OS Old Series Map Sheet 25 (Dartmoor / inland Devon inferred).

Please note that the modern reference map on the split screen is intended as a guide only.

Old Series Map Index

 

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Landscape and Archaeological Assessment

Landscape Classification

This sheet represents a moorland upland landscape, characterised by Dartmoor tors, high moor, river valleys, moor-edge settlements and route corridors.

Archaeological Landscape

The primary archaeological theme is Dartmoor prehistoric moorland, ridgeway, enclosure and river-valley crossing landscape. Enhanced prediction from Roman-road, ridgeway, hillfort/enclosure, villa/estate, road-convergence and river-crossing logic.

High Visibility Locations

Central Dartmoor Upland Zone

Terrain Archaeology

The terrain is interpreted using hachures. Relief is represented by hachures, allowing inference of ridgeways, high points, spur ends, valley approaches and likely route/crossing logic.

Main Geographic Information

Main Landscape Features

Sheet 25 shows a mixed area of moorland upland Dartmoor tors, high moor, river valleys, moor-edge settlements and route corridors . The map is useful for studying early 19th Century historic settlement patterns, Roman road alignments, early archaeological site indentification, how roads, old tracks, lanes and paths, villages, waterways and field systems related to the wider nineteenth-century landscape.

Main Geographic Features

Archaeological Predictions

Archaeological Hotspots

Central Dartmoor Upland Zone is interpreted as a prehistoric moorland, cairn and enclosure landscape landscape. Teign/Dart Moor-edge Crossing Belt is interpreted as a river valley crossing and settlement zone landscape. Tavistock/Tamar Fringe Route Zone is interpreted as a moor-edge route and mining landscape landscape.

Historic Routes, Crossings and Connections

Dartmoor high route corridor is interpreted as a prehistoric upland route corridor. Historic crossing points where roads, trackways or routeways converge on significant water features are widely recognised as archaeological hotspots. Crossing points often acted as gateways within the historic landscape. Because movement was channelled through these locations, archaeological evidence may occur both at the crossing itself and along the routes leading towards it, forming broader zones of archaeological potential rather than isolated sites.Teign/Dart river valley corridor is interpreted as a river-valley route corridor. Historic crossing points where roads, trackways or routeways converge on significant water features are widely recognised as archaeological hotspots. Crossing points often acted as gateways within the historic landscape. Because movement was channelled through these locations, archaeological evidence may occur both at the crossing itself and along the routes leading towards it, forming broader zones of archaeological potential rather than isolated sites.

Historic Gateways and Crossing Places

Teign valley crossing belt is a river valley crossing. Tavistock/Tamar fringe crossing is a moor-edge river crossing.

Main Places