County Boundary Signs In Montana

Entering Lewis and Clark County on I-15 south.

Entering Cascade County at Belt Creek bridge on MTS-228 south.

Entering Chouteau County on US-87 south.

Entering Blaine County on US-2 east.

Entering Lewis and Clark County on I-15 north. Lewis and Clark County is home to Helena, the Montana state capital.

Entering Jefferson County on I-15 north.

Silver Bow County on I-15 north.

Entering Powell County on I-90 West.

Entering Lake County on MT-35 south.

Entering Madison County on MT-55 south.