AMP: 45 Location: MT-78 and S-421, Stillwater Cty Reassurance shield after the 421 junction. AMP: 33 Location: MT-78 and Montana Ave, Absarokee, Stillwater Cty A few miles later, we’ll enter unincorporated Absarokee. AMP: 32 Location: Woodard Ave and Avis St, Absarokee, Stillwater Cty In downtown Absarokee, we’ll approach Secondary 420, which because of its number is sparsely signed. … Continue reading Montana Highway 78, S-421 to S-420