[ 32 ] 36 
of the water wliicli it would receive. Aqueducts through the ravines 
which it should wind round, would shorten it: but a great number of 
tlieui would be required, and their construction would be very costly. 
To ascertain the relative levels of Pine Swamp, (where rise the 
springs of Muddy Creek of Yotighiogheny, and Muddy Creek of 
Cheat river) and Deep Creek, a level was run to the summit of the 
ridge, which divides the waters of the Youghiogheny and Cheat river; 
tltis ridge parallel to the Roman Nose ridge, is called Snaggy Moun- 
tain. From this level, it appeared that the point, from whicii rise 
the highest springs of the two muddy creeks, is 75 feet aI>ove Pine 
Swamp, and 226.77 feet above the base-mark. This result, which 
proved the impossibility of running the canal in this direction from 
the mouth of Deep Creek, proved also t!iat a reservoir of S or 4 miles 
area might be formed in the Pine Swamp, and that being raised at 
least 150 feet above the base-mark, a feeder might be led fioni it, fol- 
lowing the eastern lidge of Snaggy Mountain, and joiring Snowy 
Creek, after winding r'>und the heads of tlie tribuiai-ics of the Yoiigh- 
ioglieny, from Snowy Creek to Muddy Creek. This feeder would 
he from 8 to 12 miles long, and to form the reser\oir a dam might 
be thrown through Muddy Creek of the Vonghiogheny, at the gap 
where it breaks through Snaggy Mountain. This reservoir would 
afford an im|)ortant supply, if those of the little and great Yonghio- 
ghenics should piove insulUcient to feed tlie summit leveis. We shall 
now cnumci'ate and measure the cajiacity of these several reservoiris, 
and give all the necessary details of them. 
Reservoir No. 1, miglit be formed in the main branch of the great 
Youghiogheny, by throwing a dajn across it, above the moutii of 
Chei'ry-tiee Creek. It should be 40 feet high to raise the water six 
feet above the summit level, and allow to the feeder a descent of six 
inches per mile — height of its dam 40 feet, and length of its feeder, 
to the dam in Deep Creek, 16 miles. 
Area of the reservoir, exposed to evaporation. 2,804,333 sq. yds. 
Its prism, or capacity of water, above the base 
mark, 5,523,370 eub. yds. 
No. 2 might be formed in Cherry creek by throwing a dam across 
it, above its mouth; the dam should be 40 feet high, and the length 
of its feeder 16 miles. For this, and all the following reservoirs, wc 
shall allow the same data. 6 feet water above the basemark, and 6 
inches descent per mile for their feeders. 
Area, - 1,752,000 sq. yds. 
Prism, - - - - - - 3,170.148 cub. yds. 
No. 3 might be found in Youghiogeny, between Cherry and Snowy 
creek, by thiowing a dam througli it above the mouth of Snowy 
creek, lleight of the dam 50 feet, length of the feeder 14 miles. 
Area, - - ... - 1,475,444 sq. yds. 
Prism, - - _ - - - 2,7 96,518 cyb. yd.s. 
No. 4> receiving Laurel creek and Snowy Creek, might be formed 
