Lewis and Clark Trail Highway, Thomas S. Foley Memorial Highway
271.0 mi4 hours 23 mins
| Head northeast on Sherman Highway (US 97) | 9.4 mi | |
| Continue onto US Route 97 - Sherman Highway (US 97) | 18.1 mi | |
| Continue onto Sherman Highway (US 97) | 700 feet | |
| Continue onto Sam Hill Memorial Bridge (US 97) | 2.4 mi | |
| Turn right onto Lewis and Clark Trail Highway (WA 14) | 79.2 mi | |
| Take the ramp on the left onto Lewis and Clark Trail Highway | 18.6 mi | |
| Keep right towards US 395 north to I‑182: Kennewick | 3.3 mi | |
| Continue onto South State Route 395 (US 395) | 1.1 mi | |
| Continue onto Lewis and Clark Trail Highway (US 395) | 3.0 mi | |
| Keep right towards I 182: Spokane | 1.9 mi | |
| Take the ramp towards US 395 north : Spokane | 900 feet | |
| Keep left towards US 395 | 0.3 mi | |
| Keep right towards US 395 North: Spokane | 0.2 mi | |
| Merge left onto Thomas S. Foley Memorial Highway (US 395) | 130.5 mi | |
| Continue onto I 90 E | 1.7 mi | |
| Take the ramp towards Maple Street | 0.2 mi | |
| Continue onto West 5th Avenue | 400 feet | |
| Go straight | 0.2 mi | |
| Continue onto West 4th Avenue | 0.2 mi | |
| Make a slight left to stay on West 4th Avenue | 200 feet | |
| Continue onto South Lincoln Street | 0.4 mi | |
| You have arrived at your destination |
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Grass Valley, Oregon - Spokane, Washington