| 21. | To the east of the crater rim is a smaller rille designated Rima R�aumur.
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| 22. | This rille is part of a nearby system that has the designation Rimae Aristarchus.
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| 23. | The eastern part of this area is notable for a series of rille systems.
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| 24. | In the southern part of this area is a rille system designated Rimae Archimedes.
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| 25. | Moving on, they traveled to the rille.
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| 26. | A rille named Rima R�aumur runs from this site to the outer wall of R�aumur.
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| 27. | The crater lies at the southern end of a rille that proceeds towards the north.
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| 28. | About 60 kilometers to the west of Herigonius is a sinuous rille designated Rima Herigonius.
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| 29. | Where the bay joins the mare, rille systems extend to the north and south.
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| 30. | Apollo 15 explored smaller peak Mons Hadley Delta ( ? ) and Rima Hadley rille.
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