You've seen the joke T-shirt that claims the person is the world's largest source of natural gas... Some might say that Boston Terriers (like my little babies) are the world's largest source of gas. Despite the reputation, my dogs never pass gas. With all the propane tanks at Webster Garner in St. Helen, you'd think that they were the largest source of LP gas. LP gas is not natural gas. It is made from natural gas. I don't think that flatulence counts as natual gas, either. But in case you're interested, the world's largest source of natural gas is in Russia. I just thought this was a cute name for a cache...
You're looking for a micro cache. It contains a log book. Bring your own pen. Please be sure to seal the lid and replace carefully.