The Gilman Tunnels along the Guadaloupe River on State Rd 485 are pictured above in this Wikipedia photo. The pavement ends just past the tunnels and FR376 continues to SR126 near Fenton Lake State Park. This link has three more spectacular photos.
Get off the beaten path on the Jemez mountain trail west of Santa Fe, 102 miles each way. Hwy 126 is unpaved for much of it's 40 miles back to SR4, but may be of interest to some. Here's an area map, with dining and lodging info. Here's another link with more info. You may also enjoy the nearby Los Alamos Visitor Center and the Bradbury Science Museum.
Click on the map for directions.
"With nearly a million visitors each year, Albuquerque’s International Balloon Fiesta may be the world’s largest and best-known ballooning event – but it is not alone, as balloons set sail across New Mexico year-round. Balloon festivals in Taos, White Sands, Gallup and Elephant Butte join with Albuquerque to make hot-air ballooning in New Mexico and year-round adventure."
On the way to the cliffs, Hwy 117 takes you past the El Malpais National Monument, "The Narrows" sandstone formations. (Google Maps photo.)