Download 1m Contours with MasterMap®
Get 1m Contours here
Description
An accurate portrayal of the land's topography covering England, Wales and a large part of Scotland. Available as an additional layer to OS MasterMap® in CAD format (DWG/DXF). The dataset is derived from the Environment Agency's Light Detection and Ranging (LIDAR) study.
| Coverage: | Great Britain |
|---|---|
| Formats: | CAD (DWG & DXF) |
| Options: | Colour, black & white |
| Printable scales: | 1:100 – 1:10,000 |
| Stated accuracy: | Urban +/- 1m, rural +/- 2.5m, moorland / mountain +/- 8m |
| Updates: | Yearly |
| Delivery: | Within seconds of ordering |
| Licence options: | 12 months (other options available on request) |
| Projection: | OSGB36 geodetic datum using Transverse Mercator projection |
| Grid: | British National Grid |
What is a contour line on a plan?
Contour lines are the thin red-brown lines drawn on a map that connect points of similar elevation above sea level, implying that if you physically followed a contour line, the elevation (height of the land) would remain constant. They show elevation and the landscape’s shape.
How often are the 1m contours updated?
1m contours are updated yearly.
How many meters is a contour?
Our contour layer shows elevation contour lines at 1-metre intervals.
Can Google maps show contour lines?
Follow this step-by-step guide to find out how to show contour lines on google maps.
What format are the contours lines offered in?
The contours are offered as an additional layer to DWG and DXF files.
Where can I use 1m contours?
Contours are used for a wide range of activities, including disaster preparedness, urban planning, architectural design, resource development, and surveying, as well as camping, hunting or fishing.
What are the 3 types of contour lines?
There are 3 kinds of contour lines you’ll see on a map: intermediate, index, and supplementary. You can read more about it here.
How do you read contours?
Contour lines connect locations with the same elevation: if they are near together (they never intersect), the elevation changes quickly in a short distance and the landscape is steep. Elevation changes slowly if contour lines are spaced widely apart, indicating a smooth slope.
Can I preview 1m contours?
1m contours are not available for preview. You can download samples here.
Which software do I need to view 1m contours?
DWG and DXF files require CAD software (free viewer here Autodesk Viewer).
| OS MasterMap® with 1m contours DWG |  |
| OS MasterMap® with 1m contours DXF | |
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