🔹
The most reliable source for HEC-GeoHMS versions compatible with ArcGIS 10.8.x is the Esri Arc Hydro Download Site Version Check : Look for files labeled with download hec geohms for arcgis 108 exclusive
Some users access versions through Informer Technologies or SoftDeluxe , though official repositories are recommended for security. Important Compatibility Note 🔹 The most reliable source for HEC-GeoHMS versions