Keystone Corner Lunch

Keystone Corner Lunch We’re an affordable lunch spot serving specialty burgers, hot dogs, hand cut fries, sandwiches, an
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Campfire season is right around the corner, so we’re bringing back our s’mores shake with real toasted marshmallows, gra...
09/02/2026

Campfire season is right around the corner, so we’re bringing back our s’mores shake with real toasted marshmallows, graham crackers, and chocolate!

Tomorrow is the LAST Friday of the month and you know what that means… our famous Fish Fry is back! 100% gluten-free—and...
08/27/2026

Tomorrow is the LAST Friday of the month and you know what that means… our famous Fish Fry is back!

100% gluten-free—and honestly, you’d never know it if we didn’t tell you. Crispy, golden, and seriously delicious. Online preorders start at 8pm tonight.

08/18/2026

PENNSYLVANIA, WE HAVE A TOP 10 BURGER. 🍔🔥

Keystone Corner Lunch just landed at #9 on the list of the best cheeseburger spots in Pennsylvania!

#9.

NINE.

Out of the whole dang state.

We’re a little restaurant in Saint Marys making burgers that apparently got noticed all the way across Pennsylvania.

That’s pretty freaking awesome.

Thanks for eating the burgers. Thanks for telling your friends. And thanks for helping us make this happen.

#9 today… but we’ve got our eyes on the other eight. 👀🍔

THE TEXAS 10-4 BURGER 🤠🔥🍔A beef patty stacked with pepper jack, green chili-marinated pork, bacon, fresh jalapeño & onio...
08/14/2026

THE TEXAS 10-4 BURGER 🤠🔥🍔

A beef patty stacked with pepper jack, green chili-marinated pork, bacon, fresh jalapeño & onion straws, and a kick of ghost pepper mayo. Here for a limited time!

Can’t go wrong with our Bacon Ranch Cheese Fries! 🍟🥓🧀 Crispy, hand-cut double-fried fries loaded with fresh bacon, homem...
08/12/2026

Can’t go wrong with our Bacon Ranch Cheese Fries! 🍟🥓🧀 Crispy, hand-cut double-fried fries loaded with fresh bacon, homemade ranch, and plenty of melty cheddar.

Tomorrow 7/31 is Fish Fryday! Preorders are available online tonight after 8pm.
07/30/2026

Tomorrow 7/31 is Fish Fryday! Preorders are available online tonight after 8pm.

Hard to believe this is was what the building looked like eight years ago today!
07/27/2026

Hard to believe this is was what the building looked like eight years ago today!

The A1 Burger is loaded with blue cheese, A1 sauce, roasted peppers, charred onions, and mushrooms. Big, bold flavor in ...
07/11/2026

The A1 Burger is loaded with blue cheese, A1 sauce, roasted peppers, charred onions, and mushrooms. Big, bold flavor in every bite. Come grab one before it’s gone!

Can you name this specialty burger? 🍔 Hint: It’s not on our regular menu.
07/01/2026

Can you name this specialty burger? 🍔 Hint: It’s not on our regular menu.

Please note we’ll be closed July 4th, 5th and 6th, so we can all enjoy the holiday weekend. We’ll reopen Tuesday July 7t...
06/26/2026

Please note we’ll be closed July 4th, 5th and 6th, so we can all enjoy the holiday weekend. We’ll reopen Tuesday July 7th. Have a fun and safe 4th of July! 🇺🇸🎆

Address

107 North Michael Street
Saint Marys, PA
15857

Opening Hours

Tuesday 11am - 7pm
Wednesday 11am - 7pm
Thursday 11am - 7pm
Friday 11am - 7pm
Saturday 11am - 7pm
Sunday 12pm - 7pm

Telephone

(814)2087373

Website

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