Here's a quick short timetable from Royal West Airlines. Short and quick sums it up as it wasn't around very long. They flew Bae-146 jets between Los Angeles/Burbank/Ontario to both Reno and Las Vegas.
The timetable is actually a two sided cardboard schedule with not much into on it. It does have their phone number and the scripted writing on the front says service between Los Angeles and Vail/Eagle Colorado starts December 13.
Their main service was between Las Vegas and Burbank/Los Angeles which many other airlines operated so not sure what they could have offered that the other airlines didn't.