And Las Vegas has tons of helicopter traffic happening at all times. Police helos, medevacs going to the hospitals in the area, various Strip tours, helo runs out to the Grand Canyon, etc. In fact, there are published departures and arrivals for those tours.
Most of the time they are on Tower's helicopter control freq on 123.82, but at times they may be combined with the two tower freqs of 118.75 and 119.9.
BL.