Anfractuous
Definition: winding, torturous
The core of the word is a form of “no break,” meaning something that bends and coils but never stops.
Why I Looked It Up
From Tomorrow, and Tomorrow, and Tomorrow:
When she zoomed out to the larger map, she found the location of Breaker of Horses was unmarked and it took much unscientific backtracking and circling along anfractuous roads to find the place again.