Hennepin County GISThis dataset includes areas within Hennepin County that likely experienced landslide activity in historic or pre-historic times. The specific ages of the landslide activity are unknown, but likely range in the hundreds to thousands of years ago. The areas were digitized by analyzing digital elevation, hillshade and land cover data sources. The digital elevation and hillshade datasets are sourced from the metro's 2011 light detection and ranging (LIDAR) bare earth dataset. This dataset will be updated when newer LIDAR data becomes available. Undated Landslide Types Small slide: Areas of active erosion and multiple small slides; shallow-seated, estimated plane of failure is less than 4.5m (15ft); includes ravine sides that are subject to failure; common throughout the Lake Minnetonka region and interior of the county and along first order stream valleys and ravines. Scarp and flank: Steep head and side slopes where slide originated; deep-seated, estimated failure plane depth is greater than 4.5 m (15ft); may also include ravine heads, sapping basins, and human modified slopes; not always paired with a clear deposit. River slope: Intermediary between the large landslide and small slides and found along major rivers. Deposit: Lobe or fan-shaped area with smooth, hummocky or blocky surface expression; may include debris fans or colluvial fans; includes large historic landslides; primarily located along the major rivers and tributaries. Modified slope: Non-natural terrain in steep slope zone that may have been modified or repaired subsequent to a landslide: does not include areas of steep slopes that were clearly modified but had no indication of past landslides (e.g. highway slopes). This dataset supports the Hennepin County Landslide Atlas: Click here to visit the Hennepin County Landslide Atlas websiteArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/c2ebd4556a2b477a8bd208da6972bea6_0engHennepin County GIS DataPublicLandslide Inventory – Undated [Minnesota--Hennepin County]Web servicesMinnesota--Hennepin CountyMinnesotaLast Modified: 2025-08-01