A’a Lava: A’a lava is identified by the jagged, rough surface as seen in this photo. A’a lava experienced a more violent eruption, moved farther and faster following eruption, and may be seen in large blocks such as the lava seen in the photo. Photo by Gary Warren/ladailypost.com
Pahoehoe Lava: Pahoehoe lava is characterized by a smoother surface that may appear in strands like a rope. The eruption of Pahoehoe lava was slower and flowed across the Earth’s surface in a more liquid state. Photo by Gary Warren/ladailypost.com
By GARY WARREN
Photographer
Formerly of Los Alamos
Craters of the Moon Read More














Falls: The falls in Idaho Falls begin as water flows over dam or retaining wall before cascading down several boulders and rocky areas before flowing back into a tributary stream which joins the river a short distance downstream. In addition to the original retaining wall seen across the upper portion of the photo, the rocky, cascading falls are part of the man-made falls. Photo by Gary Warren/ladailypost.com
Calm: The waters of the Snake River flow very calmly while the waters that flow over the wall become very active as they flow across the rocks into a tributary stream. The wall (seen on the 

