In Christopher Keane's book Northern Woods Walks, he gives a route description for reaching the fire tower on Number Five Mountain (which is southwest of Jackman). Here are my suggestions for revisions for the directions to this trail:
From Jackman, drive twelve miles south, and you'll see Spencer Road come in on the right (there's some other large signs at the start of this road). Turn right here. Unfortunately, I don't have an exact mileage of how long you're on Spencer Road, but it's about 16-17 miles. What will happen is a short while after you drive by the sign for Hardwood Mountain Road (which is on the left), on the right you'll see an old logging road with a snowmobile sign and a small, vertically aligned sign that says "NO 5 MTN." Turn right here. This road is a little rough, so people in lower cars might not like it, and if so, parking on Spencer Road is an option. This road goes for 0.4 of a mile before ending at a logging yard. The access trail for the fire tower continues straight ahead. From this logging yard, Number Five Mountain is to the northwest. Since this trail isn't actively maintained, there are tons (and tons) of blowdowns along it, which make for slow going. But, those who perservere will be rewarded with amazing views from the tower on the summit.
From Jackman, drive twelve miles south, and you'll see Spencer Road come in on the right (there's some other large signs at the start of this road). Turn right here. Unfortunately, I don't have an exact mileage of how long you're on Spencer Road, but it's about 16-17 miles. What will happen is a short while after you drive by the sign for Hardwood Mountain Road (which is on the left), on the right you'll see an old logging road with a snowmobile sign and a small, vertically aligned sign that says "NO 5 MTN." Turn right here. This road is a little rough, so people in lower cars might not like it, and if so, parking on Spencer Road is an option. This road goes for 0.4 of a mile before ending at a logging yard. The access trail for the fire tower continues straight ahead. From this logging yard, Number Five Mountain is to the northwest. Since this trail isn't actively maintained, there are tons (and tons) of blowdowns along it, which make for slow going. But, those who perservere will be rewarded with amazing views from the tower on the summit.