Salem to Choteau Road Trip: Best Stops & Drive Guide

Before you set out, know this: the drive from Salem, Oregon, to Choteau, Montana, spans roughly 800 miles along US-20 and I-90, crossing the Cascade Range, the Columbia River Gorge, and the Rocky Mountains. This route passes through the heart of the Pacific Northwest's volcanic and glacial landscapes, with a stark transition from rainforest to high desert to alpine tundra.

One specific quirk: you'll cross into Mountain Time Zone at the Idaho-Montana border near West Yellowstone, so adjust your watch. The journey takes about 12 hours of pure driving, but plan for at least two days to savor the sights.

Road quality is generally excellent, but mountain passes have steep grades and sharp curves; use lower gears to avoid brake overheating. Winter travel demands chains or snow tires. Rest areas are plentiful on interstates, but on two-lane highways like US-20, pullouts are less frequent—plan breaks every 2 hours.

Family-friendly stops include the Oregon Museum of Science and Industry in Portland (a detour), the Idaho Falls Zoo, and the Children's Museum of Montana in Great Falls. Most attractions offer discounts for children under 12.

Pet-friendly hotels and motels are common in larger towns; many national forests allow pets on leash. Carry water and waste bags. For fatigue management, the 20-minute power nap rule applies, and coffee from local roasters like Bend's Backporch Coffee is a great pick-me-up.

Hidden off-route gem: the ghost town of Bannack, Montana, a well-preserved gold rush town that's a state park.

The route showcases the Cascade Range's volcanic peaks, including Mount Jefferson and the Three Sisters, then descends into the sagebrush-covered Columbia Plateau. In Idaho, you'll skirt the Snake River Plain, known for its lava fields and the Craters of the Moon National Monument, a UNESCO World Heritage Site candidate but not yet designated (actually a National Monument).

Cultural stops include the High Desert Museum in Bend, OR, which highlights regional wildlife and history, and the Teton Valley's ranching towns like Driggs, ID. Local commerce thrives on artisanal foods: try bison burgers in Bozeman, MT, and huckleberry treats in Seeley Lake.

For geology buffs, the Great Rift of Idaho is a visible fault line. The route also passes through the Bitterroot Valley, where Lewis and Clark's expedition wintered in 1805.

For finding unique spots, use this helpful resource: how to find the best stops and hidden gems between cities.

Most of the route follows well-maintained interstates and US highways, but remote stretches require planning. Fuel is easy to find in towns like Bend, OR, Twin Falls, ID, and Butte, MT, but gaps of 100+ miles exist in central Oregon and southern Idaho—keep your tank above half.

Cell service is spotty in mountains and high desert; download offline maps. The cost of driving, including gas, meals, and one night's lodging, averages about $300 for two people, with gas alone around $120 at current prices.

• Gas price average: $3.50/gallon (ID and MT often cheaper than OR)
• No tolls on this route
• Weather closures possible in winter (passes like Santiam and Homestake)
• Check road conditions via OR/ID/MT DOT websites