Juniata, a river of Pennsylvania, formed in the S. central part of the state, by the junction of the Little Juniata and Frankstown branch, which rise at the foot of the Alleghany mountains, in Blair and Bedford counties. Its general course is E., with many deviations; and after passing through a mountainous country, it joins the Susquehanna 14 m. above Harris-burg. Nearly its whole course is celebrated for its picturesque scenery. Including the Franks-town branch, it is about 150 m. long. It is not navigable. The Pennsylvania canal and railroad follow its banks throughout its whole extent, the latter crossing the river many times.
Juniata, a central county of Pennsylvania, watered, by the Juniata river; area, 360 sq. m.; pop. in 1870, 17,390. It has a mountainous surface, with many fertile valleys. The Pennsylvania railroad and canal pass through it. The chief productions in 1870 were 230,624 bushels of wheat, 329,231 of Indian corn, 347,054 of oats, 69,520 of potatoes, 16,938 lbs. of wool, 299,575 of butter, and 19,809 tons of hay. There were 4,215 horses, 9,160 cattle, 6,315 sheep, and 7,164 swine; 4 manufactories of agricultural implements, 13 of carriages, 8 of lime, 18 tanneries, 9 flour mills, and 2 saw mills. Capital, Mifflintown.