Viktor Schauberger's research into how flowing water create vortexes and energy as it movesThis might help in finding vortexes in your area:
Magnetic anomaly maps and data for North America
Magnetic anomaly maps and data for North America
Airborne measurement of the earth's magnetic field over all of North America provides gridded data describing the magnetic anomaly caused by variations in earth materials and structure.mrdata.usgs.gov
may provide a key on to how to locate potential vortexes via google satellite maps
for on the ground dowsing and development for HDR use.