Lakes Terrain Viewer · LTV-5m

LIDAR composite DTM 2022
1 m native · displayed at 5 m / px
Lake District + Eden Valley · 65 × 65 km

Preparing your terrain

Elevation data

EA composite DTM 2022 · 1 m source Display · 5 m / px

Cross-section profile

Draw a line on the map to sample the profile. Click to add vertices, double-click to finish.

Line length: —

Ground dist (3D): —

Segments: —

Sample points: —

Min / max elev: —

Total ascent: —

VE ×—

Captured points 0 points

#	Grid ref 8-fig · 6-fig	Easting	Northing	Elev (m ODN)	Note

No points captured yet. Click anywhere on the map in point mode to drop Pnt 1.

Mountain Rescue

MR Teams 944 c/o MR callout hotspots 23

Team totals = real 2024 data from MREW Annual Review 2025. Per-hotspot counts remain approximate — MR teams don't publish granular per-location breakdowns. See DOCS/DATA-REFRESH-CADENCE.md for annual refresh process.

Helicopter

H Helicopter ELS 26

ELS = Emergency Landing Sites. Hospital + AA-base sites are operational year-round; MR valley LZs are routinely used; mountain LZs only when wind, cloud and ground conditions allow.

Communications

Signal blackspots 24

Community-knowledge curated — MR safety advice + UKHillwalking + LD National Park guidance. Not an Ofcom dataset (their bulk download is aggregate per-LA stats without coordinates — useless for point-level walker planning). Absence of a marker does NOT mean signal IS present in the rest of the map; assume hill signal is unreliable everywhere.

Old mine workings

Mines & shafts 377

Old mine entrances + unmarked shafts are a real off-path hazard. Hover any marker for name.

Planned (not yet wired)

Cloud-cap-frequent peaks · Mountain Rescue base stations · MR actual recent-year data per-hotspot (replacing the approximate pattern layer above).

Campsites:

Tents 72 Caravan / Motorhome 142 Mixed 26

Campervan Stopovers:

All 32

Projection & extent

Horizontal datumOSGB36

ProjectionBNG (EPSG:27700)

Transverse Mercator · central meridian 2° W · scale 0.9996012717

Bounding box E290 000 – 355 000 m

Bounding box N475 000 – 540 000 m

Width65 km

Height65 km

Output resolution5 m / px

Pixel dimensions13000 × 13000

Vertical datum

DatumODN (Newlyn)

Geoid modelOSGM15 (2015)

ReferenceMSL 1915–1921

Ordnance Datum Newlyn — mean sea level at Newlyn, Cornwall, averaged 1915–1921. All heights in this viewer reference this single point.

Primary LiDAR source

EA LiDAR Composite DTM1 m native

Environment Agency 2022 · ~131 quarter-tiles (107 from v0.5.2 + 21 east column from DATA-RAW Lake District archive + ~3 WCS for NY44 north). Sea-edge tiles over Solway Firth show as NaN gaps. · OGL v3

LiDAR coverage~100 % of extent

Vertical precision (LiDAR)

EA RMSE±15 cm

OSGM15 geoid±1.5 cm

Effective±15 cm

Elevation range (this extent)

Minimum~0 m ODN (Solway coast NW corner)

Maximum978 m ODN (Scafell Pike, NY21) — England's highest

Covers the Lake District National Park, the western Eden Valley and the Cumbrian coast. The central fells — Scafell Pike, Helvellyn, Skiddaw — run through the middle. The Solway Firth clips the NW corner; Eden Valley borders the east.

Selected palette

NameCM-1 · Imhof

LineageEA composite DTM 2022 1m, Imhof_1962 hypsometric tints

Resolution5 m / px

Full provenance & method →

LTV 5m Oblique Scene Render