For some reason my neighbor and I missed each other, hiking in opposite directions. I was hiking down Granite Gap off of the PCT in the Bucks Lake Wildernes about the same time my neighbor (retired Judge) said he was on his way to Mt Pleasant along side the PCT in the Bucks Lake Wilderness in N CA, same trail. I don't know how we could have missed each other, one of us had the time wrong. My neighbor was nobo on the PCT, headed towards Mt. Pleasant and at about a 45 degree angle from him he said, out of the corner of his eye a bear was huffing and grunting bear noises then charged him. After a few seconds, he yelled, waived his hiking poles, the bear stopped, he turned around and was walking away when the bear charged a second time. Same thing, yell and wave the poles, after which the bear retreated some and this time my neighbor backed away with the bear looking at him and huffing more, my neighbor kept retreating then the bear walked away, over the rise. He only saw the one bear, no indication of cubs. On Saturday on my way up to camp along the PCT, I had seen two piles of scat, thinking nothing of it.