Front Plate Required: Yes
Area Codes: 406
License Plates:
Windshield Stickers:
Road and Highway Signs:
County Roads:
Highways:
Highway Adoption:
Historical:
None
The east end of Montana is a dry grassy plains with the occasional rocky bumps and rolling hills. Most official coverage is on the interstate and US highways, both of which use diamond bollards. Very few state highways have official coverage in this region (yet), but coverage is the blurry gen 1 potato cam and a small black antenna is visible on the Google car.
Grassy plains on the east side
White diamond bollards
Gen 1 car with black antenna
Montana has several different standard license plates, but the solid blue one is the most recognizeable. It has a single state-wide area code, 406, and state signs use large rectangular stickers with various bright colors. You'll find stickers that are red, orange, yellow, blue, and green, but rarely if ever just plain white.
Solid blue license plates
406 Area Code
Large stickers with vibrant colors
T-intersection warning signs are in the process of being updated, so you may find one of several different types. In older coverage, they are marked anywhere from nothing to a bunch of chevrons, but in newer coverage, they more consistently have a warning with black stripes around the arrow. Many advertisement boards are owned by Dakota company, which only shows up in Montana and North Dakota.
T-intersection sign, older coverage
T-intersection sign, newer coverage
Dakota company billboards
West of Great Falls and Bozeman, the terrain becomes mountainous and the scenery shifts to pine forests. Highways still use diamond bollards, but the gap between the yellow lines widens for a potential middle rumble strips, though not every road has the actual strip. US Highway 12 runs along West Fork Lolo Creek through the mountains.
Exposed rock / sparse pines in the west
Stacked bollards and wider center lines
Rumbles between the yellow lines
Tennessee also has a standard solid blue license plate.
Montana
North Dakota also uses diamond bollards but its geography is relatively flat. Idaho uses white square bollards, but they are sometimes tilted to look like diamonds.