When Rowdy was talking about his father, after Johnny Crawford's character asked what happened to him, Rowdy said he didn't know, that he didn't know where his dad was or whether he was dead or alive.
But, in an earlier season - Season 4, Episode 1, called "Incident at Rio Salado" - when Rowdy unexpectedly ran into his dad, at the end of that episode, his father was killed and he was buried, with Rowdy there.
So, the writers likely should've checked through previous scripts or something.
Aaron Bolt tries to demonstrate that the river is safe for the cattle to ford, but quickly gets trapped in quicksand. Rowdy wades in to pull him out, somehow forgetting the rope that was used to rescue him and Jonas Bolt earlier the same day.