Miles from anywhere
Definition 1 of 1
Pro Tip 1/3Use for Emphasis
It emphasizes extreme isolation, more than just being far away. 
After the long trek, we felt we were miles from anywhere.
Pro Tip 2/3Hyperbole
It's often used as a hyperbole, not a literal distance. 
When the storm hit, we were miles from anywhere with no shelter.
Pro Tip 3/3Emotional Impact
The phrase can create a feeling of loneliness or tranquility, depending on context. 
The silence was profound, our cottage being miles from anywhere.