Question: Are both Siuslaw River and Hvítá, Árnessýsla located in the same country?
Sentence (from "Hvítá, Árnessýsla"): Here, the Hvítá combines with three other rivers: the Tungufljót, the Brúará, and the Stóra- Laxá, doubling the volume of the river.
Relevant evidence: No