Postcard of lava flows at the Craters of the Moon National Monument, Idaho. | Craters of the Moon National Monument, Idaho. Pressure ridge - Movement and settling of bonded lava caused the weakened surface crust to buckle and crack, forming ridges which range from 8 to 15 feet high.photographic postcard
Black and white photograph of a lava field at Craters of the Moon National Monument, Idaho, probably...
Photo shows an interpretive sign at Craters of the Moon National Monument, Idaho, explaining the roc...
Postcard of crystal formations from a cave at the Craters of the Moon National Monument.photographic...
Postcard of sinkholes in lava flows in Craters of the Moon National Monument, Idaho. | Craters of th...
Postcard of volcanic craters at the Craters of the Moon National Monument in Idaho.photographic post...
Postcard of volcanic craters at the Craters of the Moon National Monument in Idaho.photographic post...
Postcard of a large crater in Craters of the Moon National Monument, Idaho. | Craters of the Moon N...
Postcard of a volcanic crater at Craters of the Moon National Monument.photographic postcar
Black and white post card photograph of lava outcrops at Craters of the Moon National Monument, Idah...
Black and white photograph of lava fields at Craters of the Moon National Monument, Idaho, probably ...
Black and white photograph of a deep crack in a lava bed at Craters of the Moon National Monument, I...
The Craters of the Moon lava field covers 618 square miles and is the largest young basaltic lava fi...
Photo shows a volcanic landscape with volcanic plugs in the Craters of the Moon National Monument, I...
Postcard of spatter cones with a view of surrounding mountains at Craters of the Moon National Monum...
Postcard of a tree at the Craters of the Moon National Monument.photographic postcar
Black and white photograph of a lava field at Craters of the Moon National Monument, Idaho, probably...
Photo shows an interpretive sign at Craters of the Moon National Monument, Idaho, explaining the roc...
Postcard of crystal formations from a cave at the Craters of the Moon National Monument.photographic...
Postcard of sinkholes in lava flows in Craters of the Moon National Monument, Idaho. | Craters of th...
Postcard of volcanic craters at the Craters of the Moon National Monument in Idaho.photographic post...
Postcard of volcanic craters at the Craters of the Moon National Monument in Idaho.photographic post...
Postcard of a large crater in Craters of the Moon National Monument, Idaho. | Craters of the Moon N...
Postcard of a volcanic crater at Craters of the Moon National Monument.photographic postcar
Black and white post card photograph of lava outcrops at Craters of the Moon National Monument, Idah...
Black and white photograph of lava fields at Craters of the Moon National Monument, Idaho, probably ...
Black and white photograph of a deep crack in a lava bed at Craters of the Moon National Monument, I...
The Craters of the Moon lava field covers 618 square miles and is the largest young basaltic lava fi...
Photo shows a volcanic landscape with volcanic plugs in the Craters of the Moon National Monument, I...
Postcard of spatter cones with a view of surrounding mountains at Craters of the Moon National Monum...
Postcard of a tree at the Craters of the Moon National Monument.photographic postcar
Black and white photograph of a lava field at Craters of the Moon National Monument, Idaho, probably...
Photo shows an interpretive sign at Craters of the Moon National Monument, Idaho, explaining the roc...
Postcard of crystal formations from a cave at the Craters of the Moon National Monument.photographic...