Three Finnish siblings head for the logging fields of nineteenth-century America in the New York Times–bestselling author's "commanding historical epic" (Washington Post).

Born into a farm family, the three Koski siblings—Ilmari, Matti, and Aino—are raised to maintain their grit and resiliency in the face of hardship. This lesson in sisu takes on special meaning when their father is arrested by imperial Russian authorities, never to be seen again. Lured by the prospects of the Homestead Act, Ilmari and Matti set sail for America, while young Aino, feeling betrayed and adrift after her Marxist cell is exposed, follows soon after.

The brothers establish themselves among a logging community in southern Washington, not far from the Columbia River. In this New World, they each find themselves—Ilmari as the family's spiritual rock; Matti as a fearless logger and entrepreneur; and Aino as a fiercely independent woman and union activist who is willing to make any sacrifice for the cause that sustains her.

Layered with fascinating historical detail, this novel bears witness to the stump-ridden fields that the loggers—and the first waves of modernity—leave behind. At its heart, Deep River explores the place of the individual, and of the immigrant, in an America still in the process of defining its own identity.