Where is the neutral safety switch for a 1997 Chevy S-10 blazer?

The neutral safety switch on a 1997 Chevy S-10 Blazer is located on the transmission. More specifically, it's usually on the side of the transmission, near where the shift linkage connects. You'll likely need to get under the vehicle to see it clearly. It's a small switch, often with a couple of wires connected.

Because its exact location can vary slightly depending on the transmission type (automatic or manual; specific transmission model within those categories), it's best to consult a repair manual specific to your 1997 S-10 Blazer's year, make, model, and engine/transmission combination. A diagram would be invaluable.