♦Garfield Trail Trailhead is on a dirt road called the Gale River Loop Road (closed in winter) off RT-3 near Twin Mountain. This is a gradual route with one good-sized brook crossing. This is the most popular route. In spring or after a heavy rain when the brook is impassable you can bushwhack. Take a left off the trail for less than 1/4 mile to a snowmobile trail. There's a couple of bridges that cross the brooks. You then bushwhack back along the bank to the main trail. It meets Garfield Ridge, you take a right and climb fairly steeply to the summit
♦Garfield Ridge Trail is also popular, it hooks up at the ♦Gale River Trail which is also on the same dirt road as above off RT-3. Or it continues southwest to Mt Lafayette and Franconia Ridge. Garfield Ridge is a rough hike with lots of elevation gain and loss particularly in the section between Garfield and Lafayette.
Less popular because of length is ♦Franconia Brook Trail which goes all the way to the Wilderness Trail. This would be a long route but is through some beautiful country.