Victoria A. Leffel Nicholas P. Angelos 2025 vector digital data Bloomington, Indiana Indiana Geological and Water Survey https://doi.org/10.14434/ijes.v7i1.42198 Victoria A. Leffel Nicholas P. Angelos 2025 vector digital data https://doi.org/10.14434/ijes.v7i1.42198 Inventoried natural landslide areas in Southeastern Indiana were mapped as polygon features at a 1:1,500 scale using data collected through fieldwork, orthoimagery, and LiDAR DEM slope pattern analysis. This project was funded through the United States Geological Survey Landslide Hazards Program under the Landslide Risk Reduction grant G24AP00426. The mapped landslide polygons depict landslide area boundaries in southeastern Indiana. ***This data set is not intended for use in site-specific studies or for assessing the stability of individual locations. Evaluating landslide hazards at a detailed scale is beyond the scope of this project.*** This project was funded through the United States Geological Survey Landslide Hazards Program under the Landslide Risk Reduction grant G24AP00426. ***This data set is not intended for use in site-specific studies or for assessing the stability of individual locations. Evaluating landslide hazards at a detailed scale is beyond the scope of this project.*** 2025 observed Complete None planned -86.0007 -84.7643 39.5012 38.0446 ISO 19115 Topic Category geoscientificInformation None karst sinkhole landslide downhill earth movement hazard debris damage geographic information system (GIS) remediation slope stability None Floyd Harrison Clark Washington Scott Jefferson Switzerland Ohio Jackson Jennings Dearborn Ripley Bartholomew Decatur Franklin Johnson Shelby Rush This file is available to anyone, but access may be contingent on written request, specific terms relevant to the agency or person making the request, and (or) current freedom of information statutes in the state of Indiana. This data set was compiled by Indiana University, Indiana Geological and Water Survey, using data believed to be accurate; however, a degree of error is inherent in all data. This product is distributed "AS-IS" without warranties of any kind, either expressed or implied, including but not limited to warranties of suitability of a particular purpose or use. No attempt has been made in either the designed format or production of these data to define the limits or jurisdiction of any federal, state, or local government. These data are intended for use only at the published scale or smaller and are for reference purposes only. They are not to be construed as a legal document or survey instrument. A detailed on-the-ground survey and historical analysis of a single site may differ from these data. It is requested that the Indiana Geological and Water Survey be cited in any products generated from this data. ***This data set is not intended for use in site-specific studies or for assessing the stability of individual locations. Evaluating landslide hazards at a detailed scale is beyond the scope of this project.*** Indiana Geological and Water Survey mailing and physical

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Bloomington IN 47404 8128557636 IGWSInfo@iu.edu Leffel, V. A., and Angelos, N. P., 2025, Landslide hazard mapping and inventory of southeastern Indiana using LiDAR data: Indiana Geological and Water Survey, Indiana Journal of Earth Sciences, v. 7. doi: 10.14434/ijes.v7i1.42198. Esri ArcGIS 13.5.0.57366 The data layers were compared against a digital elevation model (DEM) derived from light-compliant detection and ranging (LiDAR), a slope-angle DEM derivative data layer, and a combination of aerial and ortho-imagery to map landslide areas. Several landslides were additionally field-verified. All values fall within expected ranges. The data layers were compared against a digital elevation model (DEM) derived from light compliant detection and ranging (LiDAR), a slope angle DEM derivative data layer, and a combination of aerial and ortho-imagery to map landslide areas. Several landslides were additionally field-verified. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata carefully for additional details. State of Indiana 2023 raster digital data https://di-ingov.img.arcgis.com/arcgis/rest/services/DynamicWebMercator/Indiana_Current_Imagery/ImageServer Digital and/or Hardcopy 2023 publication date Indiana Imagery used for data compilation State of Indiana 2020 raster digital data https://di-ingov.img.arcgis.com/arcgis/rest/services/DynamicWebMercator/Indiana_2016_2020_DEM/ImageServer Digital and/or Hardcopy 2020 publication date DEM 2016-2020 used for data compilation R. J. Deschamps C. B. Lange 1999 1999 publication Publication FHWA/IN/JTRP-99/06, Indiana Department of Transportation and Purdue University, West Lafayette, Indiana, 1999 https://doi.org/10.5703/1288284313260 Digital and/or Hardcopy 1999 publication date Deschamps & Lange used for data compilation William J. Burns Ian Madin 2009 2009 publication https://dataspace.princeton.edu/handle/88435/dsp018c97ks82p Digital and/or Hardcopy 2009 publication date Burns & Madin used for data compilation With the availability of state LiDAR data and the combination of aerial and ortho-imagery, landslide areas were mapped and developed into a GIS polygon data layer. The mapped landslide polygons depict landslide area boundaries located in southeastern Indiana. Landslide area boundaries were determined by using the 2016-2020 State of Indiana Digital Elevation Model (DEM) data set. A slope-angle DEM derivative data layer was created using GIS software to visually depict landslide geomorphological features. Indiana Imagery DEM 2016-2020 Deschamps & Lange Burns & Madin 2024 GIS software was used to produce a slope layer which was derived from the 2016-2020 State of Indiana DEM to quantify and visualize terrain landforms and identify landslide areas. The slope layer visualizes the DEM based on the slope (gradient or steepness). When determining landslide extents, several geomorphological features such as the main scarp, flanks, and toe were visually identified using the slope data layer. DEM 2016-2020 Indiana Imagery Deschamps & Lange Burns & Madin 2024 HoosierNationalSlides_20240503 Polygon feature class of mapped natural landslides in the Hoosier National Forest. Producer Defined OBJECTID Internal feature number ESRI 1 6810 IGWS_slide_ID IGWS landslide identification number. Producer Defined Examples of values: "2023-Louisville-1191" and "2024-USGS-SE-IN-3931" Values of <null> or #null indicate no entry confidence_metric Confidence of landslide identification based off presence of: headscarp, flanks, toe, and/or internal scarps, sag ponds, compression ridges, etc. Burns & Madin 0 40 field_veriIndicates the agency that field-verified the landslide area.Producer Defined << empty cell >> Not verified Producer defined IGWS Indiana Geological & Water Survey Producer defined Jefferson County Jefferson County Producer defined comments Miscellaneous information compiled from the various data sets. Producer Defined Example of values: "hummocky surface and landslide toe present. slope failure along ridge top." 74 unique values cause Potential cause or trigger of the landslide. Producer Internal feature number << empty cell >> Unknown cause Producer defined Values of <null> or #null indicate no entry countyIndicates the Indiana county in which the landslide took place.Producer Defined Washington Washington County Producer defined Scott Scott County Producer defined Clark Clark County Producer defined Jefferson Jefferson County Producer defined Jackson Jackson County Producer defined Jennings Jennings County Producer defined Floyd Floyd County Producer defined Harrison Harrison County Producer defined Dearborn Dearborn County Producer defined Ohio Ohio County Producer defined Bartholomew Bartholomew County Producer defined Decatur Decatur County Producer defined Franklin Franklin County Producer defined Ripley Ripley County Producer defined Rush Rush County Producer defined Johnson Johnson County Producer defined Shelby Shelby County Producer defined Switzerland Switzerland County Producer defined location General location description. Producer Defined Example of values: "8169 Deer Creek Rd, Cannelton, IN, 47520, USA." 60 unique values avg_slope The slope steepness (degrees) in which the landslide took place. Producer Defined 8.02494907 47.38536835 adj_waterw Indicates the near or adjacent waterbody in which the landslide took place. Producer Defined Examples of values: "Sulphur Creek" and "not adjacent to waterway" 329 unique values slopeDefines how the slope grade was produced and in what type of slope the landslide took place.Producer Defined natural slope natural slope Producer defined natural slope and fill natural slope and fill Producer defined cut and fill section cut and fill section Producer defined cut section cut section Producer defined fill section fill section Producer defined natural slope and cut natural slope and cut Producer defined cut or fill section not observed cut or fill section not observed Producer defined roadway Indicates the near or adjacent roadway to the landslide movement. Producer Defined Examples of values: "Bristow Rd" and "I-64" 305 unique values indot_slide_IDLandslide identification number.Producer Defined << empty cell >> No ID Producer defined not yet assigned not yet assigned Producer defined sourceIndicates the source of the landslide area data.Producer Defined 2024-USGS SE-IN 2024-USGS SE-IN Producer defined errfEarliest recorded report date of failure. ERRF provides the first reported date of landslide failure through documentation.Producer Defined prior to 2017 prior to 2017 Producer defined 2017 - 2022 2017 - 2022 Producer defined 2014 - 2016 2014 - 2016 Producer defined 2005 - 2012 2005 - 2012 Producer defined prior to 2005 prior to 2005 Producer defined prior to 2012 prior to 2012 Producer defined prior to 2016 prior to 2016 Producer defined prior to 2022 prior to 2022 Producer defined 2005 - 2011 2005 - 2011 Producer defined 4/10/2025 4/10/2025 Producer defined prior to May 2025 prior to May 2025 Producer defined statusDefines if repairs were completed for a landslide area.Producer Defined no repairs identified no repairs identified Producer defined repaired repaired Producer defined correctionIdentifies what type of repair was completed for the landslide area.Producer Defined << empty cell >> No repair Producer defined drilled pier wall drilled pier wall Producer defined sheet pile wall and gabion basket sheet pile wall and gabion basket Producer defined rock backfill rock backfill Producer defined soil nails with net soil nails with net Producer defined various soil nail walls various soil nail walls Producer defined soil nail wall and rip rap soil nail wall and rip rap Producer defined sheet pile wall with shotcrete wall above sheet pile wall with shotcrete wall above Producer defined unknown if shotcrete has soil nails or tie backs unknown if shotcrete has soil nails or tie backs Producer defined sheet pile with tie backs sheet pile with tie backs Producer defined ID_metIndicates how the landslide area was mapped in this study using GIS software.Producer Defined DEM Digital Elevation Model Producer defined FIELD Found in the field Producer defined IMG Found in image Producer defined cost The construction cost of the landslide repair. Producer Defined Values of <null> or #null indicate no entry varnesVarnes Class. Indicates the failure depth in respect to the bedrock surface.Producer Defined << empty cell >> Not defined Producer defined Earth slump Earth slump Producer defined Earth slump on rock Earth slump on rock Producer defined Rockfall Rockfall Producer defined Flow Flow Producer defined area_sq_km Indicates the landslide area in square kilometers calculated with GIS software. Producer Defined 5.013918625188778e-05 0.3754982971473737 sqkm Shape_Length Internal feature length, double. Producer Defined 25.80987620570324 8413.132598108146 Shape_Area Internal feature area, double. Producer Defined 50.13918625188778 375498.2971473737 resourcespace Link to relevant photos or documents in the IGWS Digital Archives. Producer Defined Example of values: "https://data.igws.indiana.edu/?c=1293262&k=c046de3e09." Values of <null> or #null indicate no entry 121 unique values confidence_levelConfidence of landslide identification based off confidence metric.Producer Defined high 30 - 40 points Producer defined moderate 11 - 29 points Producer defined low 0 - 10 points Producer defined Indiana Geological and Water Survey mailing address

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Bloomington IN 47404 United States 812 855 7636 IGWSInfo@iu.edu COPYRIGHT 2025 THE TRUSTEES OF INDIANA UNIVERSITY, INDIANA GEOLOGICAL AND WATER SURVEY, ALL RIGHTS RESERVED The information on these media is proprietary to Indiana University, Indiana Geological and Water Survey. Any copying, adaptation, distribution, public performance, or public display of this information without the express written consent of Indiana University, Indiana Geological and Water Survey is discouraged. CREDIT It is required that the Indiana Geological and Water Survey be cited in any products generated from this data. The following source citation must be included: Leffel, V. A., and Angelos, N. P., 2025, Landslide hazard mapping and inventory of southeastern Indiana using LiDAR data: Indiana Geological and Water Survey, Indiana Journal of Earth Sciences, v. 7. doi: 10.14434/ijes.v7i1.42198. WARRANTY Indiana University, Indiana Geological and Water Survey warrants that the media on which this product is stored will be free from defect in materials and workmanship for ninety (90) days from the date of acquisition. If such a defect is found, return the media to Indiana Geological and Water Survey, 1001 E. 10th St., Bloomington, IN, 47405-1405, and it will be replaced free of charge. LIMITATION OF WARRANTIES AND LIABILITY Except for the expressed warranty above, the product is provided "AS IS," without any other warranties or conditions, expressed or implied, including, but not limited to, warranties for product quality, or suitability to a particular purpose or use. The risk or liability resulting from the use of this product is assumed by the user. Indiana University, Indiana Geological and Water Survey shares no liability with product users indirect, incidental, special, or consequential damages whatsoever, including, but not limited to, loss of revenue or profit, lost or damaged data or other commercial or economic loss. Indiana University, Indiana Geological and Water Survey is not responsible for claims by a third party. The maximum aggregate liability to the original purchaser shall not exceed the amount paid by you for the product. Digital Data https://doi.org/10.14434/ijes.v7i1.42198 None 20250605 Indiana Geological and Water Survey mailing and physical

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Bloomington IN 47404 8128557636 IGWSInfo@iu.edu FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time