ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / Layer Class / MinScale Property
Version

MinScale Property (Layer)
Gets the layer's minimum scale (representative fraction) at which the layer is visible in a 2D map view.
Syntax
public double MinScale {get;}
Remarks
You need to use GetEffectiveMinScale method, if you want to find out the effective minimum scale considering visibility scale ranges of all its parent group layers up in the hierarchy.
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also