Which obstacle explicitly hindered access to the river along the route?

• A. Dense forest
• B. Beaver ponds
• C. Steep cliffs
• D. Dry riverbed

Answer: (B)

Beaver ponds create a chain of flooded, dammed sections along a river, turning a flowing route into a series of shallow, obstructed waters. This transformation disrupts a traveler’s ability to move directly along the river, making it hard to press forward or stay on the watercourse. Crossing dammed sections or detouring around the ponds requires extra effort and time, so the route is explicitly hindered at those points. Dense forest or steep cliffs are significant challenges, but they don’t alter the river itself in the same direct, barrier-forming way as beaver ponds. A dry riverbed removes water access, but it isn’t the specific obstacle described here as blocking access to the river along the route.