Visual Sample Plan (VSP) is a software tool that supports the development of statistically-defensible sampling and data analysis plans used for site characterization. SERDP and ESTCP have supported the development of the UXO module within VSP (MR-200325 & MR-200837) which is designed to plan statistically-guided transect sampling, perform target area detection and delineation, as well as support anomaly density mapping and estimation.