Answer:
I am a path between high natural masses; remove the first letter to get a path between man-made masses.
I am longer than a decade and shorter than a millennium
What flies without wings?
I cover what's real; hide what is true, but sometimes bring out the courage in you. What am I?
Though not a plant I have leaves. though not a beast I have spine. Though many wouldn't need me I am more valuable than wine.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?