Hamilton County, IndianaHamilton County benchmark data. Maintained by the Hamilton County Surveyor's Office.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/2f0271cc892e4021afb6806f39512e87_2engHamilton County, Indiana Open Data CollectionPublicBenchmarks [Indiana--Hamilton County]Web servicesIndiana--Hamilton CountyIndianaLast Modified: 2025-01-04