This is fabulous!
A few things I've noticed looking over the NB map sans roads are several labels that you may want to have a look at. The map grid lines are coming up as county borders, solid black lines across waterways are shown as ferries which is good, but black tags along water edges are also showing as ferries which should be wharves (wharf). Also red lines along waterways and some inland places are listing as marine hazards, these appear to be dykes or earth berms.
Great job non the less. Beautiful detail when zoomed in to 1.5 km or closer. It looks like another update avaliable with NB roads. Must try this one and have a look.
Thanks for sharing
Ray
PS: also noticed sans roads that where bridges would be are labled trails.