One of the unknown? ones I seen that looked like a coyote. Was circa 1972, I was hunting with my Dad & buddy's at the time. This coyote or whatever, would've pushed 60-70lbs atleast. We dumped our greyhounds on it, but it got away.
Another time, circa 1998 hunting with just my Dad. I spotted one coming down a draw in a wide open valley off the road a couple hundred yrds. It was very large & cream-colored one. I shot at it, but couldn't connect. My Dad thought it looked more like a wolf, than a coyote-x. Never seen it again.
Two winters ago, I spotted a very large "rust" colored one. It was real wooly & scruffy looking. It was hunting in a picked cornfield. I zoomed in on him with my(50 power spotter) from 1/4 mile away. I got a pretty good look at it. It seen me sitting on the road, & took off. I've been looking for him/her ever since. Talked to the farmer who owns this land. He thought it was a wolf. He seen it up real close, while picking corn. It looked like a yote-x to me.