54 km (34 mi) farther West is Nimpo Lake which serves as a float plane base for the region. Just west of Nimpo Lake the highway crosses the Dean River before reaching Anahim Lake (population 163) and the adjacent Indian reserve at 310 km (193 mi). 35 km (22 mi) west of Anahim Lake, the highway enters Tweedsmuir South Provincial Park, and 6.2 km (3.9 mi) later, it crosses into the Central Coast Regional District at Heckman Pass. After another 20 km (12 mi), the highway meets the Atnarko River, and follows it west for 18 km (11 mi) to where the Atnarko merges with the Talchako River to form the Bella Coola River. Highway 20 then follows the Bella Coola River for 10 km (6 mi) to a bridge over Burnt Bridge Creek, at which point it exits the Park. After continuing to follow the Bella Coola River for another 27 km (17 mi), the highway reaches Hagensborg, then another 20 km (12 mi) to the centre of Bella Coola (population 2500), and then another 4.8 km (3.0 mi) to the BC Ferry terminal.