This is a three stage multi. The first two stages are virtual and within 50 feet of each other. The final is not far away, certainly walkable if you are so inclined.
Published coordinates (Stage one) will bring you to an area that looks much different than it did 25 years ago. Only the nearby convenience store was here back then. If you live in the area or drove through here regularly, you might recall that 25 years ago this was mostly farmland, with a big white farmhouse and a long industrial building. Things have changed.
At Stage One is a small plaque with some historical information. You will need information from that, plus some information from Stage Two, to get the final coordinates for this cache. Stage Two is at N 39° 24.805' W 76° 27.776', a utility pole about 50 feet from Stage One, towards the road.
Stage One: Name of the business that used to be at this location (3 words)
Stage Two: Six numbers on a gray metal strip on the road side of the pole.
Enter your answer like this: AcmeDynamiteCompany123456
The final is not far away.
You can validate your puzzle solution with certitude.
Congratulations to flamingo_girl for FTF