As the lead surveyor for a mining project that will connect two large mines, you are tasked with establishing survey control and building new roads, processing plants, dams, and sinking mine shafts. The project area encompasses a variety of landscape types, including hilly terrain, rural areas, and urban settings. Given the scale and complexity of the project, it is essential to establish a reliable and precise survey control network that will be used throughout the construction phase to ensure accurate alignment and grading of these mines. What five techniques can you use to select the locations for your primary control points $($survey control$),$ considering the various landscapes and levels of accessibility?