From the Manchester, New Hampshire airport:

• Go north from the airport, then left (west) on I-293.
• Stay on I-293 as it turns north. It will merge with I-93.
• Take I-89 west to Exit 5, for U.S. 202 and New Hampsire 9.
• Take 202/9 west until they split, then stay on 9 towards Keene.
• 9 will come to a T, with Stoddard to the right on New Hampsire 123 north and South Stoddard and Keene to the left on 9/123 south. The right hand road is prettier, shorter, but no faster, and may be just a bit harder to follow.
• If you choose to take 9 on to Keene, take it until it meets New Hampshire 12, and take that north towards Bellows Falls.
• Your next turn on this fork will be left onto New Hampshire 123 "north" (actually south and west) across the Connecticut river, then north on U.S. 5 after the narrow underpass on the far side, and the following the directions here.
• If you choose to take 123 "north" (actually west) follow it until it comes to a T with New Hampshire 12, and turn north on 12.
• In about half a mile you'll come to a stoplight, where you'll turn left over the bridge towards downtown Bellows Falls.
• Turn left at the square downtown, and go straight up to and through the stoplight. You'll now be on Vermont 121 and can follow the last part of the directions here.