KRNM is a popular choice to base for Phase 1. You will roughly be able to fly north to Temecula Valley, East to the Salton Sea and South to the border however some of the populated area's directly south of Ramona are off limits. Brown Field and Borrego Springs Airports are within your area. It is a very large area great for wringing out a new RV. You will be restricted from flying west of Ramona.![]()