Welcome to Masthead: Premier Waterfront Living on Geist Reservoir Situated on the scenic shores of Geist Reservoir across the Indianapolis and Fishers border, Masthead is a prestigious, highly sought-after residential community. Part of the larger Geist Harbours Property Owners Association, the neighborhood is divided into Masthead I and Masthead II. Perfect for water lovers, the community boasts stunning reservoir views, walking trails, and properties with direct water access or deeded boat docks. Depending on your address, families are served by either the top-rated Hamilton Southeastern or Lawrence Township school districts.