Trial by Trigger

Robert Shayne fights to save his own stand of redwood trees from the depredations of eastern logging concerns.

It's a short subject from Peter B. Kyne's story, THE VALLEY OF THE GIANTS. During the 1940s, Warner Brothers became the last major studio to issue western short subjects, and they did it in a clever fashion.... from a business standpoint, anyway. They would take a script, usually by Ed Erl Repp, shoot a few new scenes with Shayne and whoever he's co-starring with, and then cut it into some impressive cinematography from Warners' A movies. In this case, the plundered movie is 1938's GOLD IS WHERE YOU FIND IT.

The series of shorts was called "The Santa Fe Trail" series and this was the sixth one. It has a nice message about conservation that was in the original source from writer Kyne.