210 FORESTS, WOODS, AND TREES 
Buxton Urban District Council obtains its water supply 
in part from two gathering grounds—Coombs Moss area, 
200 acres, between 1300 and 1400 feet elevation, with 
two reservoirs at Lightwood; and Stanley Moss area, 1700 
acres, between 1450 and 1550 feet elevation, with one 
reservoir. These areas, which are not owned by the 
Council, are entirely moorland, without habitations, farm- 
steads, or plantations. The water is passed through high- 
pressure filters. 
The Derwent Valley Water Board supply water to 
Derby, Leicester, Nottingham, and Sheffield from a catch- 
ment area of 13,220 acres at the head-waters of the river 
Derwent in High Peak, Derbyshire and Yorkshire. It is 
mostly rough pasture and heather-covered grouse moors, 
with steep hill slopes, the elevation ranging from 700 to 
1793 feet. The Board own 1184 acres, fringing the two 
reservoirs, Howden reservoir (870 feet altitude) and Derwent 
reservoir (776 feet altitude). There were a few farm-houses 
on this part of the area which was mostly rough grazing, 
but there now remain only three dwelling-houses, one 
unoccupied and two inhabited by the Board’s workmen. 
The sewage from all three houses soaks through the land 
before it reaches the reservoir. The Board have no rights 
over the privately owned portion of the catchment area, but 
they have power to agree as to the drainage of the lands 
for more effectually collecting, conveying, and preserving 
the purity of the waters flowing on such lands into the 
reservoirs. 
The Board have planted up to February 1918, within 
the boundary of their land, 310 acres of plantations at eleva- 
tions between 700 and 1500 feet. There are a few 
plantations outside the Board’s lands. The annual rainfall 
of 59 stations for 13 years varied from 34 to 61 inches. 
All the water, except that supplied to Sheffield, is passed 
through sand filters at Bamford. 
The works authorised by Act of Parliament of 1899, of 
which only the Howden and Derwent reservoirs have been 
