38 
Phillips, in sec 16, T. 5 X.. EL 66 W., macros in area and having a 
capacity of 35 acre-feet. These are unimportant in point of capacity 
and can be used only for very limited areas. 
RESERVOIRS UNDER THE LOUDON DITCH. 
Under the Loudon Ditch there are several small reservoirs and some 
very fine reservoir sites; the main difficulty met with, however, is the 
distance of the better sites from the head urates of the supply canals. 
The reservoir sites are natural depressions without outlet- and conse- 
quently tunnels or cuts must be made through which to draw the 
water. On account of the loss of head and the location of the basins 
below the head gates of the ditches of the district an exchange of water 
from them with other ditches is difficult. If discharged into the river 
there would he no ditches below to take tin 1 water and use it. as the 
Mariano Lake now exchanges with tin' lower ditches to almost their 
full rights. 
BENSON LAKE. 
Benson Lake is situated in the X. i of sec. 10, T. :> X.. R. 69 W. 
It is owned by A. S. Benson, of Loveland. and used by him to sup- 
plement his supply from the Barnes Ditch for about -!<»<> acres of land. 
By the use of the reservoir Mr. Benson says the amount of land irri- 
gated is twice what it otherwise would be. The reservoir has an 
available capacity of about 300 acre-feet. 
THE RENTAL. 
This is a small lake of about 1<» acres in sec. 2. T. 5 N., R. 69 W.\ 
tilled from the Loudon Ditch and supplements the irrigation of some 
60 acres. The capacity is about 50 acre-feet. 
SEVEN LAKES. LOUDON AND BOYD LAKES. 
These form a system lying close together some 3 miles northeast of 
Loveland. and for the most efficient use are largely dependent on each 
other. The Loudon Lake, which is the most northerly, has been in 
operation for some time, and by decree has aright to50;000,000 cubic 
feet, or 1.148 acre-feet. Its priority is dated February 24. 1883, and 
is the sixth on the Bio- Thompson River. This lake is located mainly 
in sec. 30, T. 6 X.. R. 68 W., on the line of the Loudon lateral, and is 
used as an auxiliary supply for some 2,000 acres of land on the Cache 
la Poudre slope. It covers about 65 acres to a depth of 28 feet. The 
area of land irrigated by the Loudon lateral by reason of the avail- 
ability of the water from this reservoir is at least doubled. The reser- 
voir, with its outlet ditch, was bought by the Seven Lakes Company. 
The vear 1901 was the first season for the Seven Lakes and was fairlv 
