AMP: 26 Location: S-426 and US-191, Fergus Cty Just after S-237, we’ll approach US-191. AMP: 26 Location: S-426 and US-191, Fergus Cty Turn left for 191 north and right for 191 south. AMP: 26 Location: S-426 and US-191, Fergus Cty Follow 191 north to Malta and 191 south to Lewistown.  W to US-87/MT-3/MT-200  N to MT-81, S to … Continue reading Montana Secondary Highway 426, S-237 to US-191