Limestone is situated at the intersection of three well-maintained highways.
Route 89 travels west through downtown Limestone and intersects U.S. Highway 1 at Caribou.
U.S. Highway 1A traverses north and south from downtown Limestone. Route 1A South provides access to the northern terminus of Interstate Highway 95, located 55 miles south in Houlton.
The third highway is Route 229 which heads east two miles to the Canadian Border. The Limestone-New Brunswick port-of-entry provides 24-hour customs inspection with the Trans-Canada Highway located three miles beyond this border.
Primary regional airport facilities are located at Presque Isle, 26 road miles from Limestone. Secondary airport facilities, including passenger and freight transport, are located 12 miles from Limestone in Caribou.
Bus facilities are also available in Caribou.
Interstate Highway Access (to Limestone)
- 6 Miles from the Trans-Canada Highway #2
- 55 Miles north of Interstate-95 exit 302 at Houlton via US Route 1A
State Highway Access (to Trafton Lake)
- 2 Miles from State Route 1A via Bog Rd. to Ward Rd.
- 2.5 Miles from State Route 89 via Ward Rd.