The Central Fishing District includes all waters in Montana east of the Continental Divide, (including the Belly and St Mary's River drainages) and west of the following described boundary:
Interstate 15 from the Montana-Canada border south to its junction with Hwy 2 at Shelby, then east on Hwy 2 to Chester, then south on Hwy 223 to State Route 80 at Fort Benton, then southeasterly along State Route 80 to its junction with State Route 81, then easterly on State Route 81 to its junction with U.S. Hwy 191, then northeasterly along U.S. Hwy 191 to its junction with State Route 19, then south on State Route 19 to its junction with U.S. Hwy 87 at Grassrange, then south on U.S. Hwy 87 to its junction with U.S. Hwy 12 at Roundup, then west on U.S. Hwy 12 to its junction with State Route 3 at Lavina, then south on State Route 3 to its junction with Interstate 90 at Billings, then easterly and southerly on Interstate 90 to the first crossing of the Little Bighorn River, then southerly along the west bank of the Little Bighorn River to the Montana-Wyoming border.
Note: Roadways that are used as boundaries between the Central and Eastern Fishing Districts are interpreted to be in the Central Fishing District.
