"The Needle", 'Iao Valley, windward Maui.
The Needle (left) faces the remnants of the wall rocks of the West Maui Mountains caldera. The Needle is a remnant of the floor of the caldera.
Closeup of the 'Iao Needle, showing the heavy rainforest vegetation growing on the steep faces of the basalt pinnacle.
The stream that runs along the floor of the 'Iao Valley is choked with rubble from the erosion of the  volcanic rocks of the floor and walls of the West Maui Mountains caldera.
Looking at the cleft between the wall rocks of the West Maui Mountains caldera and the spire of the 'Iao Needle.
"The Needle", 'Iao Valley, windward Maui.
Looking at the cleft between the wall rocks of the West Maui Mountains caldera and the spire of the 'Iao Needle.
Honopu Canyon viewed from Kalalau Lookout near Waimea Canyon, west Kaua'i.
Erosional features on the westernmost cliffs of Kalalau Valley viewed from Kalalau Lookout near Waimea Canyon, west Kaua'i.
"The Needle", 'Iao Valley, windward Maui.
"The Needle", 'Iao Valley, windward Maui.
"The Needle", 'Iao Valley, windward Maui.
See photo in original gallery.