Diamond Loop Back Country Byway
Driving Directions

Driving the Byway

From New Princeton:

• The byway starts in New Princeton. In New Princeton head south on OR-78 toward Lava Bed Rd.
• After 0.2 miles make a slight right at Lava Bed Rd.
• Stay on Lava Bed Rd for 1.4 miles then make a slight right at Narrows-Princeton Rd.
• In 1.6 miles make a slight left at Lava Beds Rd.
• Stay on Lava Beds Rd for 20.4 miles. At this point, drivers can choose to turn right at continue on to Frenchglen or left to drive the Diamond Loop.

To Frenchglen:

• Turn right at Diamond Grain Camp Rd/Diamond Ln.
• After 6.8 miles make a sharp left at OR-205 and continue south for 17.7 miles until you reach Frenchglen. Here the byway ends.

The Loop:

• Turn left at Diamond Grain Camp Rd/Diamond Ln.
• Stay on Diamond Grain Camp Rd/Diamond Ln for 5 miles then turn left at Happy Valley Rd.
• Stay on Happy Valley Rd for 13 miles. Here the byway converges with Lava Beds Rd and you can continue again towards Frenchglen, where the byway ends.