Section 167.53 - In the approaches to Portland, ME: Southern approach(a) A separation zone 1 mile wide is established and is centered upon the following geographical positions:
Latitude
Longitude
43°27.00' N
70°03.48' W.
43°07.82' N
69°54.95' W.
(b) A traffic lane 11/2 mile wide is established on each side of the separation zone.