Lowell-Dracut-Tyngsboro State Forest
To the west of Trotting Park Road is Lake Althea and the Scarlet swamp. The west side is also where some of the funnest, most popular, singletrack in the park is. Just out of the main entrance, hang a left and get ready to rip.
The east side of the park is where the majority of the trail system of Lowell-Dracut-Tyngsboro State Forest. On this side you will also find what is called the \"playground\", which consists of big natural rocks left in the area by retreating glaciers. At the playground you will be able to hone your rolling and hucking skills. Be advised: for experienced riders only.