IRRIGATION IK NORTHERN COLORADO. 35 
ducing a fund of $60,000. Of this, $20,000 is to cover interest charges 
on indebtedness and $10,000 goes into a sinking fund. Ordinary 
operation and maintenance costs are covered by the remaining 
$30,000, which is at the rate of approximately 65 cents per acre 
irrigated. 
The Water Supply & Storage Co. system includes 11 reservoirs 
with an aggregate capacity of 26,000 acre-feet, 4 canals tapping other 
watersheds and diverting water into the Cache la Poudre, the Lari- 
mer County Canal, and an interest in the Jackson Ditch. 
The Larimer County Canal is the distributing canal for the system 
and also supplies the lower reservoirs of the system. It heads in 
section 13, township 8 north, range 70 west, and extends eastward 
75 miles to Owl Creek, into which it tails. The area irrigated is 
shown in Plate XL The canal is 24 feet wide on the bottom, has 
a grade ranging from 1.32 to 3.16 feet per mile, and will carry 600 
second-feet. There are about 50 laterals, with length of 150 miles. 
At the head of the Cache la Poudre River the company owns four 
ditches which divert water from other sheds and turn it into the 
Cache la Poudre to be stored in Chambers Lake or diverted below 
into the Larimer County Canal. The Skyline Ditch intercepts 
water from" tributaries of the Laramie River, the Cameron Pass 
Ditch diverts from the Michigan River shed, and two ditches divert 
the headwaters of the Grand River. For carrying this foreign water 
in the channel of the Cache la Poudre the water commissioner de- 
ducts 5 per cent for losses in transit. 
The company owns an interest in the Jackson Ditch, acquired by 
purchase from the Larimer & Weld Reservoir Co., and a further 
interest was obtained by an exchange arrangement with individuals 
under the Jackson Ditch whose farms lie partly above the ditch. 
Contracts covering this exchange arrangement provide that the 
Water Supply & Storage Co. acquires a definite amount of stock of 
the Jackson Ditch, and the water secured on it is tailed into Long 
Pond. In exchange the individual acquires the right to an equal 
amount of water, less a small per cent for loss, from the Larimer 
County Canal throughout the season for his high land. The Water 
Supply '& Storage Co. benefits by the arrangement because it receives 
the Jackson water throughout the season constantly, while the de- 
mand on the Larimer County Canal is intermittent. 
Three of the reservoirs of the company, Chambers, Lost, and Lara- 
mie Lakes, with an aggregate capacity of approximately 7,000 acre- 
feet, are located at the head of the Cache la Poudre and in addition 
to storing water of the Cache la Poudre may be used to hold up 
foreign water brought over from other sheds. 
Of the lower reservoirs Black Hollow, with a capacity of 5,760 
acre-feet, is on the line of the canal about 25 miles from the tail of 
