All answers are connected to cartography and maps.
1. First USA Canada divide that is not thin (3,4,3).
2. A way without assistance? (8).
3. Two straight lines never converging on a king (8,5). I thought PARALLEL LINES but "lines" is in the question and I can't parse "king".
No, no, just my warped sense of humour. I like to show an interest in my helpers or else it's the final stages of crossworditis! Incurable and no doubt terminal. Forgive me if it offends.