Dwellers in the Hills by Melville Davisson Post

The road running into the south lands crosses the Valley River at two places, -- at the foot of Thornberg's Hill and twenty miles farther on at Horton's Ferry. At the first crossing, the river bed is piled with boulders, and the river boils through, running like a millrace, a swift, roaring water without a ford. At Horton's Ferry the river runs smooth and wide and deep, a shining sheet of clear water, making a mighty bend, still ford-less, but placid enough to be crossed by a ferry, running with a heavy current when swollen by the rains, except in the elbow of the bend where it swings into a tremendous eddy.

Over the river, where the road meets it first, is a huge wooden bridge with one span. It is giant work, the stone abutment built out a hundred feet on either side into the bed of the plunging water, neither rail nor wall flanking this stone causeway, but the bare unguarded width of the road-bed leading up into the bridge.