Pilot tube guided boring equips contractors with the ability to accurately tackle extended trenchless gravity flow pipeline installations of 4-48-in. diameter pipe and larger with the guided auger boring method, in soft ground up to rock geology within a minimal footprint. Guided auger boring has positively impacted the auger boring market by ensuring bore accuracy, expediting installations, facilitating longer lengths, and reducing casing diameters for project savings. Pilot tube rock drilling has achieved success in rock density up to 12,000 psi using cutting tools to establish an accurate course for subsequent upsizing tooling. This presentation will explain these methods along with relevant case studies illustrating guided boring solutions that resolved project challenges.