Yes—many squirrels do remember where they bury at least some of their nuts, but they also rely on smell and still “lose” a decent portion of them.

How good is a squirrel’s memory?

  • Studies on gray squirrels show they can remember dozens of cache spots for weeks to months, using what’s called spatial memory.
  • In lab tests, squirrels were able to find their own buried nuts about twice as often as nuts buried by other squirrels, which suggests they recall specific locations rather than just digging randomly.
  • Some research suggests they can track up to around 20–24 different cache sites over a couple of months in controlled conditions.

How do they actually find the nuts?

  • Mental maps: Squirrels build a mental “GPS” of landmarks—trees, rocks, paths—and remember nut locations relative to those markers.
  • Chunking: They often group similar nuts together (for example, all acorns in one zone, all walnuts in another) to reduce memory load and make recall easier.
  • Smell: Their sense of smell helps, especially at shallow depths, but when the ground is frozen or snow-covered, spatial memory becomes more important.
  • Revisiting and reburying: Squirrels sometimes dig up and rebury nuts, or rearrange leaves over cache sites, which may act like “rehearsing” the location so they don’t forget.

Do they forget a lot of nuts?

  • It’s a popular claim that squirrels forget where they hide “about half” their nuts; evidence points more to a mix of remembered and forgotten caches rather than a precise 50%.
  • They certainly do miss some caches—those forgotten nuts can sprout into new trees, so squirrels unintentionally help reforest areas.
  • Loss of caches isn’t only from forgetting; other squirrels and animals also steal hidden nuts, and some caches are destroyed by weather or human activity.

Why bury nuts in the first place?

  • Squirrels are “scatter hoarders”: instead of one big stash, they spread food across many small caches to reduce the risk of losing everything to a single thief or disaster.
  • Burying helps them survive winter and early spring, when fresh food is scarce and they need high-energy reserves.
  • Their caching strategies—distance, depth, and how visible the disturbed soil is—change depending on how valuable the food is and how many potential thieves are around.

A quick mental picture

Imagine your entire neighborhood as your pantry. You hide snacks at specific corners, near certain trees, and beside that one odd-looking mailbox. You remember: “Two houses past the red car, behind the hedge.” That’s roughly what a squirrel is doing—only with hundreds of tiny snack stashes and a brain wired to build an impressively detailed map of its home turf.

Information gathered from public forums or data available on the internet and portrayed here.