Mammoth Market

Mammoth Market Your new local stop. Clean store. Friendly faces. High quality fuel. Open now!

Tired of congested fuel stations when towing your boat or trailer? We've got tons of turnaround space! Plus, you don't h...
08/04/2026

Tired of congested fuel stations when towing your boat or trailer? We've got tons of turnaround space! Plus, you don't have to pull directly on to Hwy 20 when exiting. Leave the stress behind, and make us your first stop for end of summer adventures.

Our Sweet Rain coffee from Watertown is my fave!
07/31/2026

Our Sweet Rain coffee from Watertown is my fave!

Thank you to everyone who came to our grand opening event!
07/17/2026

Thank you to everyone who came to our grand opening event!

Today is the day! See you this afternoon for our celebration! $0.50 off per gallon from 1-4 pm using the DINOPAY app, as...
07/17/2026

Today is the day! See you this afternoon for our celebration! $0.50 off per gallon from 1-4 pm using the DINOPAY app, as well as freebies and giveaways. Don’t miss out!

Don’t miss our Grand Opening Celebration tomorrow! We will be hosting a raffle, and there will be plenty of free food an...
07/16/2026

Don’t miss our Grand Opening Celebration tomorrow! We will be hosting a raffle, and there will be plenty of free food and drinks from our vendors! You’ll also get $0.50 OFF PER GALLON during the celebration from 1-4 pm if you use the Sinclair DINOPAY app!

Come try our hot food next time you’re in!
07/11/2026

Come try our hot food next time you’re in!

Excited for our upcoming Grand Opening Celebration! We are already open everyday from 6 am - 9 pm, but help us celebrate...
07/02/2026

Excited for our upcoming Grand Opening Celebration! We are already open everyday from 6 am - 9 pm, but help us celebrate on July 17 from 1-4 pm. There will be freebies, giveaways, and big fuel discounts! Don't miss out. 961 Pettit St Hamilton, WA

We worked hard to design and build our store - so excited with the results! Come see us in person.
06/30/2026

We worked hard to design and build our store - so excited with the results! Come see us in person.

Address

961 Pettit Street
Sedro-Woolley, WA
98284

Opening Hours

Monday 6am - 9pm
Tuesday 6am - 9pm
Wednesday 6am - 9pm
Thursday 6am - 9pm
Friday 6am - 9pm
Saturday 6am - 9pm
Sunday 6am - 9pm

Website

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