Which of Saturn's moons has such distinctive equatorial ridge?

Dione
Rhea
Enceladus
Iapetus
The ridge is 13 km high, 20 km wide and 1300 km long. Its origin is not known, but considering the amount of craters, it's safe to assume that it is a very old geological feature.
Ninjai
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Very interesting!
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Answers by country

Dione
Rhea
Enceladus
Iapetus
answers
flagthe Philippines
0%
10%
20%
70%
10
flagGreece
9%
36%
9%
45%
11
flagAustralia
14%
9%
42%
33%
21
flagAustria
11%
38%
22%
27%
18
flagPoland
12%
28%
34%
23%
3122
flagthe United Kingdom
9%
36%
36%
18%
33
flagIndia
8%
39%
34%
16%
106
flagthe United States
5%
40%
38%
16%
60
flagGermany
13%
30%
40%
15%
72