Growling in Cleveland County, Oklahoma

We had lived out here for about 4 years at the time. We were driving down the dirt road and stopped by the apartment style mailboxes about a half mile or so from the house. While stopped I was talking to my husband and my oldest son started to mumble something but couldn't quite get it out. I look back at him and he's pointing towards the front of the truck. I look up but don't see anything at first. My husband was looking as well but didn't see anything either. Then I saw it. I couldn't speak either. I started slapping my husbands arm and pointed. It was across the road on the other side of the creek and up a little ways. It was on the left side of the fence which is thick brush. On the right was an open pasture which will hold cattle in rotation. At the time there were cattle in rotation but they were all huddled up across the pasture and right up next to the feed road. it was very tall...it looked like it could bend over and touch the ground on the right side of the fence without getting hurt by the barbwire. It stood there and then I think it noticed our truck and looked our way. It swung an arm out as it turned to look our way. I got scared and started to drive away. My son yelled to go back. I had only driven about 15 feet if that and I put the truck in reverse and when I backed it up the thing was gone. My husband says it has to have been a cow. I thought for years it had to have been a bear. But deep down I know that was no bear. When it turned it had a flat face not a bear snout. It didn't appear to be scared of us it was more of an uh oh moment. When it turned towards our truck and saw us it froze. I didn't move at all once it saw the truck. It was gone in seconds. Its been five years and we still don't like to run out to the truck after dark. We are in a secluded area an we all stay to ourselves out here. we don't talk about this to anyone and this is the first time we have shared our story. My whole little family saw this thing. So we have four people who now believe this thing is real. Since then we have continued to hear the low growls in the woods. What sounds like careful steps at night. I tell myself its a deer or something but I no longer believe its our typical wildlife.