HugeRiver huge river 1000000 1 500000 LargeRiver

750000 HugeRiver 0.6

125000 LargeRiver 0.3

75000 River 0.3

0.8 30 0.8 LargeRiver large river 500000 0.75 250000 River

100000 River 0.3

0.6 14 0.4 River river 100000 0.5 50000 Creek

50000 Creek 0.3

0.4 6 0.2 Creek creek 20000 0.2 4 0.05