all ctf

geo osint ctf: Outpizzaing The Hut

a roadtrip photo, a pizza hut, and a missing ZIP code. how hard could it be?

the challenge

The prompt was simple: someone took a photo of a Pizza Hut on a roadtrip, forgot where it was, and wants to go back. Find the ZIP code of the town. The link to the challenge is here: https://compete.metactf.com/573/problem?p=133

Pizza Hut roadside sign reading 'WINGS ARE BACK GET SOME TATSY CRISPY WINGS OwO' with an Appalachian ridge visible in the background and red-leafed shrubs in the foreground
// challenge image — 20241117_132821.jpeg

The filename alone gave me something to work with: 20241117_132821, so November 17th, 2024. That's a real timestamp, not a red herring, and it set a hard upper bound on when the photo was taken.

reading the image

I started pulling environmental signals before touching any tools. First pass:

The sign also says "TATSY" instead of "tasty" which is extremely charming and completely unhelpful for geolocation. Noted anyway.

note

The image was a bit soft at distance so I ran it through waifu2x to upscale and sharpen before looking at finer details. Good habit for any geo challenge where signage or background text matters.

narrowing it down

Ridge and Valley province narrowed my search area considerably. I had three real candidates: western Virginia, West Virginia, and central Pennsylvania. I went with Virginia first, mostly on instinct. Lucky guess! 

From there it was straightforward Google Maps work. I searched for Pizza Hut locations in the Ridge and Valley region of Virginia and WV, cross-referencing the road curvature visible in the image and the ridge angle relative to the sign. This looked like a small town and especially with the road trip narrative, I moved away from the beaten path. The road curves gently to the left in the background, the ridge runs roughly northeast-southwest, and there's a speed limit sign just barely readable at 45 mph.

Petersburg, WV came up after a little searching as a match. Small town, sits right in the South Branch Potomac valley, ridge running exactly where it should, and the road layout matched. I confirmed the Pizza Hut on Google Street View and the geography lined up! 

the answer

The location is 444 Virginia Ave, Petersburg, WV 26847.

ZIP code: 26847.

tools used

google maps google search waifu2x

No fancy gear required. The solve was mostly about reading the physical environment correctly before touching anything. Once you're in the right region, maps does the rest.

Geo OSINT lives and dies on your ability to extract signal from background detail. The ridge shape, the vegetation, the banner, the timestamp, the road speed limit, all of it narrows the polygon before you open a single tab.


Questions or corrections? Find me at hello@nyxvia.com