wikipedia.org/wiki/Lava#P.C4.81hoehoe Pāhoehoe Lava] flows in the open [[lava]] channel (not in a [[Lava tube]]) with overflows at both sides. The image...
public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. Public domain works must...
"Map of approximate route of Verendrye and his sons" (caption) from Oregon Historical Quarterly vol. 26 (page 80 crop).jpg...
