The surprisingly circular seamount rises about 3,300 feet off the seafloor, and has “relatively steep, smooth sides,” scientists say. Saildrone image A mountain would seem to be a tough thing ...

The sea mountain, or "seamount," appears more like a smooth-sided circular tower ... what's interesting about this one is that it's really steep. It rises from the bottom of the seafloor with ...

Rocks scattered on the mountain are too hot to touch ... on the south side of this solid monolith of granite, is a steep, treeless avenue of boulders. Finally we stop to rest in the shadow ...

The trail then opens to a wide path for about a mile, with several steep hills and some spots for shade, before a washed-out rocky section takes you to the 3-mile point halfway up the mountain.

Rescuers rappelled down a steep mountain slope in Hawaii Monday and airlifted a missing hiker found nearly 200 feet below the trail to safety after her barking dog caught the attention of bystanders.