Project Hotspot drilled 3 slim hole exploratory wells in southern Idaho, each just under 2 km deep. These holes were designed to investigate thermal structure in three different settings within the Snake River Volcanic Province: (1) along the axial volcanic high of the central SRP, (2) along the margins of the central SRP, in an area of known thermal waters, and (3) in the western SRP graben. All holes were cored and logged geophysically. This paper describes the drilling and logging campaigns and their results. doi:10.2204/iodp.sd.15.06.2013