16 has a few pretty spots, but is mostly an undivided 2 lane highway. There are occasional deadly crashes there too.

Here’s the circuitous route I’d recommend:

93 North, exit 32 has fuel and (mostly mediocre) food if you need it

Continue on 93 into beautiful Franconia Notch

While in the Notch, consider: the Cannon Mountain Tramway to the top of Cannon if you have time. Old Man Viewing Site on the other hand would just take a few minutes. The Basin is ten minutes’ walk and beautiful. Artist’s Bluff is moderate maybe hour long hike to get good views.

Regardless of how much time you spend in the Notch, continue north on 93 for a short time, bear right onto Route 3.

3 soon connects to 302 in Twin Mountain. Take 302 East in the direction of Glen. 302 is curvy, beautiful, takes you through Crawford Notch.

When you reach Glen, Conway is a relatively short ride south from there.

GPS HELP: Before driving into no-service Franconia Notch, select Twin Mountain Campground in Carroll as your destination. Then, when you get service again, set the DQ (Dairy Queen) in Glen as your next destination.