Lava rock, or volcanic rock, is made from the molten lava that volcanoes emit. Available in red or black, it tends to weigh less than many other landscaping stones. Thanks to its porosity ...

As it happens, rounded rocks have been found at sites occupied by ancient hominids across the world, although until now ...

Rocks hurtled through the ... Lassen's eruption was the most recent volcanic explosion in the lower 48 states. Ecologists now study Lassen's landscape to see what the future may bring to the ...

Join Isla and Connor as they explore igneous rock landscape features at Traprain ... ISLA: Yes, because it’s a volcanic plug. A plug forms when molten lava and hot ash gets stuck as an upright ...