A complete chart of the Allegheny River showing the islands and bars, and low water channel from Warren to Pittsburgh.

Allegheny River Valley below Kinzua, Pennsylvania, from Coal Knob Fire Tower, circa 1935.

A 1940 view of the Allegheny River and the village of Kinzua, looking upstream from Big Bend.

Looking west on the Allegheny River at Hickory Street ca 1910. The stone building in the foreground is Warren's second city lock-up, replacing an earlier frame building on the other side of the suspension bridge. The 1918 concrete Hickory Street bridge crossed the river at the site of the stone jail.

The Allegheny River valley from above the village of Kinzua, ca 1940.

Dunkirk, Allegheny Valley & Pittsburgh Railroad depot at the northwest corner of Laurel Street and Fourth Avenue, built in 1893 and razed in 1939. Photo probably taken very shortly after construction, in the mid-1890s.

Big Bend on Allegheny River at Kinzua, ca 1940.

Devils Elbow on the Allegheny River at Kinzua, ca 1940.

Allegheny River lumber barges and coal boat bottoms at the Grunderville mill below Warren circa 1905.

The Glade Run House (predecessor to the Allegheny Hotel, on the same site) in an 1865 lithograph. Built about 1850, it burned in 1875.

Lumber raft (two thirds width of a regular ""Allegheny Raft"") coming in for a landing just above the suspension bridge, 1885. Photo by Col. Fred E. Windsor.

Building a lumber raft on the Allegheny River above Warren, about 1890.