[ 32 ] 44 
per to ascertain whether its line should not leave the valley of the 
Youghiogeny, above the Ohiopyle falls, and running east, gain the 
soutliern branch of Indian creek, to rejoin the Youghiogeny by des- 
cending Indian Creek valley. 
From the paper mill, the canal should be run at a sufficient eleva- 
tion above the river, to leave the shore, and gain, if possible, the high 
level which lies east of Connellsvillc, in order to turn round the rug- 
ged bluff b*«low that place. From thence, following the right shore, 
it will reach Robstown, after crossing on aqueducts Mount's creek 
and Jacob's creek. The localities and dimensions of these aqueducts 
must be determined, as well as the resources wliich these streams may 
afford to supply the canal, by turning them into reservoirs. 
Fr«m Robbstovvn to M*Kce's port, keeping along the right shore, 
it must cross Sewickly creek over an aqueduct, whose dimensions 
and location must be detennined. As this creek has two considerable 
branches, they must be examined, to determine whether leservoirs 
cannot be made in them. 
From M'Kec'sport to Pittsburg, tlie canal will follow the right 
shore of the Aalley of the Monongahela, crossing, in succession, 
Crooked Run, Turtle Creek, and Nine Miles Run, on aqueducts. 
To ascertain whether from Paper Mill the right shores of the 
Y"oughiogeny and Monongahela are certainly the best, a level should 
be run along their valleys on the left shore, and the locations and di- 
mensions of the dams or aqueducts which it would be necessary to 
run through the Youghiogeny at M'Kee's port, and through the Mo- 
nongahela near its confluence with the Youghiogeny, in case this 
route was adopted, should be fixed and calculated. 
It will also be essential to try whetlier the canal might not turn to 
the west of that narrow and rugged portion of the valley of the Youg- 
hiogeny, where it forces its way through Biicry Mount and Laurel 
hill. For this purpose, a level should be run from Seiby's port, and 
some point of a proper elevation, and cross the Briery Mount at the 
depression which it offers between the heads of Buffalo Marsh Run 
and the eastern branch of Sandy Creek. This level should then wind 
round the ravines of the head of the western branch of Sandy Creek, 
till it met the Laurel Hill at tlie spot where it might be crossed by the 
shortest tunnel. When it reached its western slope, it should run 
northwardly along its foot, to descend by one of its ravines to the 
Youghiogeny, opposite the paper mills. 
On the whole, the western section of the canal, from the mouth of 
Bear Creek to that of the Monongahela, at Pittsburg, offers no ob- 
stacles which may not be surmounted at a reasonable expense; and the 
Avaters of the Youghiogeny, Bear Creek, and Cassellman's river, are 
amply sufficient to feed it. Large reservoirs may be formed in Bear 
creek and Cassellman's river, by throwing dams across them, and on 
the route from Cassellman's to the Paper mills, and at the mouth of 
the Youghiogeny in the Monongahela. The practicability of this 
section is out of question. 
Its length will be about 100 miles, and its descent from Bear creek 
