go to this link, NB interactive map
https://www.nbfsc.com/index.php/maps
Island lake lodge would be due west of Bathurst at a major intersection of the trail system, a few different loops can be done from there..
I planned my 3 day trip with their map and it worked out 95%, I do think they need more signs telling you where you are ,
I had to frequently go to the trail app on my phone. But trails were great!!!