Park along the road and head up a clearly marked trail / old road up the side of Bald Mountain. The trail heads straight up the mountain and becomes fairly steep but, it is not a problem for an adult in reasonably good physical condition.
Bald Mountain was once a ski area and the remains of building foundations, chair lifts, etc... can be found at the base of the mountain on the west side as well as near the top. A website for "lost" ski areas of Maine is located at http://www.nelsap.org/me/balddedham.html
There is an abandoned fire tower on top as well as numerous antennas; microwave, cell, etc...
There are also some great views from the top in all directions. The cities of Bangor / Brewer, Maine are clearly visible just a few miles to the west. There are really great views of a series of lakes to the west and northwest. The mountains at Baxter State Park are visible in the distance including, of course, Mt. Kathadin. You can see to Acadia and its mountains just a few miles to the east.
The top has some trees and underbrush but, it is relatively flat and is easy to navigate. There are plenty of bald areas with blueberry bushes... the first of August they would afford a very nice snack.
Bald Mountain is a nice hike, not too strenuous affording some great views of Maine and is within easy driving distance of Bangor. The road to access the area is an all weather road and there is ample parking. Pick a clear day in late spring, early summer or even better in the fall during the leaf change.