Big Sky Country

They call Montana big sky country, and it's easy to see why. The blue sky was above us, but it also seemed to be all around us.

As I rode today I thought about the sky. I wondered what percentage of the total sky--the sky surrounding the earth--I was actually seeing. How much sky can a person see if they stand in one spot and looked around in all directions? Say you're on the ocean and there's nothing around, how much sky are you actually seeing? Can you see more of the sky from on top of a tall mountain? These are questions that need answers. (If you're interested, maybe you can search online--or offline--and see what you can find. You could post your findings under messages, or email me. Thanks.)