The Huehue Flow - Mauka from Queen Kaahumanu Highway
North of Kona Airport, the highway crosses the 1801 Huehue lava flow from the Puhia Pele vent. The lava tube that's visible from the road continues mauka. I walked just over 3 miles, a mile and a half in and back. The landscape is rugged:
The photos have been manipulated in GIMP. I think it brings out something about the lava. Click for larger.