Geoscience Reference
In-Depth Information
10
(a)
Figure 10.1
Examples of
topographic maps. (a) Extract of a
1:10,000 British Ordnance Survey
map of part of Shropshire, UK
showing fi eld boundaries, tracks
and buildings in detail. (b) Extract
from 1:25,000 topographic map
of part of southern Scotland, UK,
from the British Ordnance Survey
(within 10 km grid square
NX(25)35). Grid squares are 1 km
across, and contour intervals are in
metres. (c) Photocopy of part of a
much smaller scale map of northern
India, dating from the 1940s. Grid
squares are 10,000 yards across,
and contour intervals are in feet.
Details are sparse for this large
area and out of date, but such
maps may be the best available in
remote regions. (a: Ordnance
Survey 1:10,000 Sheet SO38NE
© Crown Copyright. b: Ordnance
Survey 1:25,000 Scale Colour
Raster © Crown Copyright 2009.
An Ordnance Survey/EDINA
supplied service.)
(b)
(c)
