Sighting in Silver Sands State Park

I saw on this morning while walking my dogs. It was about 30 yards from the tall fence in between some brush on a deer path. It was watching us whipping its tail. I stopped and stared at it until it crouched down into the grass. My dogs went crazy and it was hard to pull them away from the fence. I have a 1/2 Newfoundland - 108lbs and the cat was easily twice its size. Lots of deer in Silver Sands - I'm sure the cat has plenty of food.