Grapple Point

From Wikitroid, the Metroid wiki

Grapple Points, found in the console Metroid Prime games, are special points to which the Grapple Beam can attach. After the Grapple Beam is acquired, Grapple Points appear as special icons on Samus's Visor. Gliders can also act as Grapple Points, and are identified by the same icon.

Note that the Grapple Point scan cannot be obtained until the Grapple Beam itself or, in Metroid Prime 3: Corruption, the Grapple Lasso is acquired. If it scanned before the Grapple Beam is acquired, a placeholder scan will be displayed instead.