Probably the best gas prices around unless you go to the Angel of the Winds Casino itself. I drive 25 minutes just to get gas because it is about 50 to 75 cents cheaper then what it is in the city that I live in. The staff is nice it's a smaller gas station and very busy. You will have to sit in line usually to get gas but it is worth the wait. And if you're hungry go to the pilot next door and get yourself some Arby's or a Cinnabon at that gas station. But I will say River Rock by far has the cheapest gas around

Good prices when you want to save, especially on gas when prices are so high everywhere. Staff is friendly and good selection.

If you’re in Arlington, anywhere near Hwy 530 & Smokey Point Blvd you must stop and fill up at River Rock. THE CHEAPEST GAS IN SNOHOMISH COUNTY! Cheaper than Costco! My car is getting great mileage with the cheapest regular gas they sell - my Honda CRV is getting nearly 37 mpg so the gas is cheap but not low quality. Bonus - ethanol-free gas is also available. Plus a nice convenience store, ATM, and drive through food service. Easy in and out. Right off I-5. Entrances on two sides of Smokey Point Blvd.

Got good price on fuel and they helped me find good snacks for the road

Amazing Staff! That's you Kyle. Awesome Prices Excellent location 👏 You guys rock! River Rock!