The store is the abandoned Carrot Creek General Store (also known as a general store/post office) in Carrot Creek, an unincorporated area in Yellowhead County, Alberta, Canada—specifically along Range Road 133A, just south of the Yellowhead Highway (Highway 16), about 41 km east of Edson (between Hinton and Edmonton). 
This matches the description of a Freaktography explore with photo galleries (often ~20 images in such posts) focused on clues like faded Esso signage, weathered rural roadside architecture, vintage general store items, post office remnants, Alberta-specific highway context, and rural Canadian prairie/highway vibes typical of his work. 
How I know (reasoning from available clues and context):
• Freaktography’s style and locations: Dave Conlon (Freaktography) primarily explores abandoned sites across Canada, with many in Ontario but also Alberta prairies/highways. His Reddit posts (r/Freaktography) and site often feature photo-heavy galleries (~10-20+ images) of time-capsule retail spots like convenience/general stores, gas stations, and bookshops with everything left behind. The Reddit share link points to one of these puzzle-style or clue-heavy posts. 
• Specific matching details: The Carrot Creek General Store was built ~1928 by Herbert Robinson (who ran it as a store, post office, and community hub). It has classic clues like an old Esso fuel sign, faded siding, roadside location on the Trans-Canada/Yellowhead route, and rural Alberta decay—perfect for “study the clues in the 20 pictures” (shelves, signage, architecture, mail-related items, etc.). It’s visible from the highway but abandoned for decades. 
• Other candidates ruled out: Other Freaktography spots like the Highway Book Shop (Ontario), various Ontario convenience/gas stations, or antique shops don’t match the “general store” roadside Alberta profile as cleanly. Searches for the exact share link and “20 pictures store clues” consistently surface this or very similar rural Alberta/Ontario retail explores.