AMP: 49
Location: US 12 and Lane Ave, East Helena
Reassurance shield after 518 as we head out of East Helena
AMP: 55
Location: US-12 and S-284, Jefferson Cty
A few miles later, we’ll enter Jefferson County and approach S-284
AMP: 55
Location: US 12 and S-284, Jefferson Cty
Turn left for 284. 284 heads up to the Canyon Ferry Dam and then loops around the east side of that reservoir, meeting back up with 12 east of Townsend.
E to US-287, W to I-15/I-15 Bus/US-287
S to US-12, N to I-15/I-15 Bus/US-12
