translation help

I am baffled by the following, where the bygdebok author is speculating why the Alenfit skipreida boundaries stick to one contiguous land area, whereas church parish boundaries cross fjords and sounds: "Var det, då skipreideinndelinga gjekk for seg, lettare å kome seg fram til lands enn over sjøen, sjølv om vegen somme stader måtte gå over fjellet?" Any help appreciated.