Keywords: Lava coil.png en Surface texture of December 31 1974 pähoehoe northeast of Pu u Koa ́e Note the 10-m-diameter lava coil in the right middle of the photo USGS photo by Elliot Endo 2000-03-24 J P Lockwood et al U S Geol Surv Prof Pap 1613 p 14 2000 USGS Photo by Elliot Endo PD-USGov Uploaded with UploadWizard Lava coils |