</font><font color="blue" class="small">( We are also talking about 1 mile of trails, so doing it by "hand" with a string trimmer would take to long.)</font>
Me & 2 buddies are 'adopters' of a hiking trail in the White Mtns in New Hampshire. The trail is almost 3 miles long, up the side Mt Flume. Using the carbide-bladed trimmer we do the whole thing, 3 miles, in one day. It's thickets, brambles, blow-downs...the key is to get it early in the season before everything leafs out and takes off. If you can't find the tractor attachment you need/want before the growing season you might want to consider the manual labor...it's amazing how quickly the trail will become overgrown. Not to mention a malted beverage tastes sooooo good after a day doing that work!
Good luck - Norm