Maine State Route 229

State Route 229 (SR 229) is a state highway located entirely within the town of Limestone in extreme northeastern Maine. It begins at U.S. Route 1A (US 1A) downtown and runs 1.94 mi east to the Canada–US border, where it connects to New Brunswick Route 375. SR 229 is also known as Grand Falls Road.

Route description
SR 229 begins at US 1A (Main Street) in downtown Limestone and heads eastward as Grand Falls Road. The highway crosses over a railroad track and leaves downtown Limestone, passing to the south of Limestone Pond. The route passes several residences and periods of large farms and grasslands surrounding the two-lane highway. Just before the intersection with Morris Road, SR 229 makes a short turn further northeast and intersects with Blake Road and Nike Road. Just after the intersection with Nike Road, SR 229 passes one farm and reaches the Gillespie Portage Border Crossing. At the Canadian border, SR 229 ends and the road continues eastward in New Brunswick as Route 375 towards Grand Falls.

The border crossing is open from 6:00 AM–10:00 PM EST, 7 days a week, year round. Outside of these hours, traffic may use the Fort Fairfield-Andover Border Crossing, located 14 mi south and accessible via US 1A and SR 161.