Why wouldn't you?
I live in a different part of the world, but an early ride in my career of g/s riding was to follow a power line track called the 'Goodradigbee ...', from here
north. Later I did it from the same point (it actually begins about 3.5 kms west of the point indicated in the link) south. Both were enjoyable rides, nothing too hard, just a very enjoyable afternoon.
I don't know about your rules, but you can't wait around for the 'AUTHORITY' to give you permission to breathe - if no locked gates, no 'Keep Out' signs', clearly it was made to be used by all.
If they want to keep it to themselves they would indicate that. The government (e.g. the military) knows perfectly well how to do that. God made it to be used - use it.