Simplify the following text for a Grade 4 native English-speaking person.
Original: They are the Kama ( 1805 Â km ( 1120 Â miles ) ) and the Chusovaya ( 592 Â km ( 367 Â miles ) ) .
Simplified: They are Kama River ( 1805 km ( 1120 mi ) ) and Chusovaya River ( 592 km ( 367 mi ) ) .