HelicoptersPhotosTracking Photos Grand River Dam Authority State of Oklahoma Bell 206L-1 Long Ranger N206GS 07Aug18 pictured Bell 206L-1 Long Ranger N206GS 07Aug18 pictured Bell 407GXi N407GR Feb-23 Trakka Systems equipment, pictured Bell 407GXi N407GR Feb-23 Trakka Systems equipment, pictured
Grand River Dam Authority 
Bell 206L-1 Long Ranger 
Bell 407GXi 