ASO, Kumamoto Prefecture--Tourists could enjoy the rare view of the lake in the No. 1 crater of Mount Nakadake in the Aso volcano complex here turned green for the first time in six years.

Moonrise and Earth’s shadow looking east from the crater’s rim. The red-and-black volcanic cinder cone, located in Arizona’s Painted Desert, last erupted around 900 years ago. Michelle ...

In fact, it’ll be officially closed off by the end of this summer. SFGATE reports how Crater Lake National Park in Oregon — which is home to the deepest lake in the country — is closing down ...