I had to learn to get past my natural reserve.
The ancient name is also used for a modern natural reserve.
Since then, large natural gas reserves have also been discovered.
And Russia has the world's largest known natural gas reserves.
She would need to combine this with her own oil and natural gas reserves.
The natural reserve is not accessible to visitors at the present time.
It is the largest natural gas reserve ever discovered in Israel.
The area of the swamp is protected as a natural reserve.
It is a natural reserve, in which many rare species of birds live.
As a natural reserve, it also has unique environmental and scenic value to the city.