20250716
10572900
1.0
FALSE
Deposits
002
164800.205381
456179.989501
92621.733268
474668.113517
1
Projected
GCS_NAD_1983_2011
Linear Unit: Foot (0.304800)
OCRS_Grants_Pass-Ashland_NAD_1983_2011_TM_Feet_Intl
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20250724
11075100
20250724
12032300
150000000
5000
ItemDescription
dataset
Oregon Department of Geology and Mineral Industries
1 971 673 1555
1 971 673 1562
800 NE Oregon Street Suite 965
Portland
Oregon
97232
US
dogami-info@oregon.gov
When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org
20250724
ArcGIS Metadata
1.0
Oregon Department of Geology and Mineral Industries
1 971 673 1555
1 971 673 1562
800 NE Oregon Street Suite 965
Portland
Oregon
97232
US
dogami-info@oregon.gov
When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org
http://www.oregongeology.org
Enterprise Geodatabase Feature Class
Deposits
2023-01-01
Oregon Department of Geology and Mineral Industries
Portland, Oregon, USA
Oregon Department of Geology and Mineral Industries
vector digital data
Oregon Department of Geology and Mineral Industries Digital Data
SLIDO-4.5
Statewide Landslide Information Database for Oregon Release-4.5 (SLIDO-4.5)
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>This feature class consists of polygons delineating landslide deposits (including debris flow fans and talus extent).</SPAN></P></DIV></DIV>
This data set is a statewide inventory of mapped landslide deposits, compiled from numerous studies. This inventory is not regulatory, and revisions can happen when new information regarding landslides is found or when future (new) landslides occur. The original studies vary widely in scale, scope and focus which is reflected in the wide range of accuracy, detail, and completeness with which landslides are mapped. To determine the source of each landslide deposit, refer to the REF_ID_COD attribute field. The landslide inventory is intended to provide users with basic information regarding landslides. The geologic, terrain, and climatic conditions that led to landslides in the past may provide clues to the locations and conditions of future landslides, and it is intended that this data will provide useful information to develop regional landslide susceptibility maps, to guide site-specific investigations for future developments, and to assist in regional planning and mitigation of existing landslides.
Partially funded by the Federal Emergency Management Agency (FEMA) Hazard Mitigation Grant Program (HMGP)
William J. Burns
Oregon Department of Geology and Mineral Industries
Engineeering Geologist
Oregon Department of Geology and Mineral Industries
1 971 673 1555
1 971 673 1562
800 NE Oregon Street Suite 965
Portland
Oregon
97232
US
info@dogami.oregon.gov
When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org
Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus
North America
United States of America
Oregon
Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus
Surface
Sediment
Alluvium
Soil
Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus
ISO 19115 Topic Category
geoscientificinformation
Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus
Hazards
Inventory
Deposits
Landslide
Landslide
SLIDO
Although these data have been processed successfully on a computer system at the Oregon Department of Geology and Mineral Industries, no warranty expressed or implied is made by DOGAMI regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty.
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>REPORT DATA: This product is for informational purposes and may not have been prepared for or be suitable for legal, engineering, or surveying purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information. This publication cannot substitute for site-specific investigations by qualified practitioners. Site-specific data may give results that differ from the results shown in the publication. See the accompanying text report for more details on the limitations of the methods and data used to prepare this publication.</SPAN></P></DIV></DIV>
Statewide Landslide Information Database for Oregon Release-4.5 (SLIDO-4.5)
2023-01-01
Oregon Department of Geology and Mineral Industries
Portland, Oregon, USA
Oregon Department of Geology and Mineral Industries
vector digital data
Oregon Department of Geology and Mineral Industries Digital Data
SLIDO-4.5
http://www.oregongeology.org/
-124.801823
-116.423637
41.926111
46.273977
Based on date of original source materials
1949-01-01
2023-01-01
Esri ArcGIS 13.5.2.57366
1
-123.330544
-122.240537
43.052406
41.999130
None
None
Polygons may overlap, as intended. All polygons extracted from original sources were preserved, allowing for overlap, except where a landslide hazard specific study using Special Paper 42 method was conducted. In the SP-42 mapped areas, the older, less detailed data was replaced in its entirety by the detailed landslide specific hazard.
This data set includes most but not all published geologic map and landslide hazard-specific studies for the state of Oregon with mapped landslides. This dataset is statewide.
Relevant attributes from the original data sources are included into the SLIDO schema. Data was not modified for inclusion to SLIDO and therefore, accuracy is dependent on the original study.
The landslide polygons in this data set were captured by heads up digitizing at many different scales. For more information about horizontal positional accuracy, consult the original study.
The landslide polygons in this data set were captured by heads up digitizing at many different scales. For more information about vertical positional accuracy, consult the original study.
This data set is a statewide inventory of mapped landslide deposits, compiled from numerous studies. The original studies vary widely in scale, scope and focus which is reflected in the wide range of accuracy, detail, and completeness with which landslides are mapped. This data was prepared using a wide variety of interpretation methods, including aerial photos, field work, map digitizing, and methods following the Protocol for Inventory Mapping of Landslide Deposits from Light Detection and Ranging (Lidar) Imagery developed by Burns and Madin (DOGAMI Special Paper 42, 2009). In the Special Paper 42, the three primary tasks include compilation of previously mapped landslides, lidar-based morphologic mapping of landslide features, and review of aerial photographs. Landslides identified by these methods are digitally compiled into this database at varying scales. The recommended map/use scale for these data is 1:8,000. Each landslide is also attributed with classifications for activity, depth of failure, movement type, and confidence of interpretation.
Oregon Department of Geology and Mineral Industries
1 971 673 1555
1 971 673 1562
800 NE Oregon Street Suite 965
Portland
Oregon
97232
US
dogami-info@oregon.gov
When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org
See accompanying report for data sources.
2542
EPSG
8.6(10.4.0)
Deposits
Landslide deposit polygons
DOGAMI Special Paper 42
Feature Class
2542
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
8
0
0
Feature geometry.
Esri
Coordinates defining the features.
UNIQUE_ID
Unique code assigned by data steward to each landslide poygon in database
DOGAMI
UNIQUE_ID
String
25
0
0
TYPE_MOVE
Each landslide should be classified into one the following types of movement : 1) slides 2) flows, 3) spreads, 4) topples, 5) falls, 6) complex
DOGAMI
TYPE_MOVE
String
25
0
0
MOVE_CLASS
Landslides should be differentiated by the kinds of material involved and the mode of movement. A classification system based on these parameters was developed by Varnes (1978)
DOGAMI
MOVE_CLASS
String
50
0
0
MOVE_CODE
Movement code combining type of movement and type of material. For example, debris flow would be DFL
DOGAMI
MOVE_CODE
String
50
0
0
CONFIDENCE
Confidence of identification: high, moderate, low
DOGAMI
CONFIDENCE
String
25
0
0
AGE
Estimated age: historical landslide age less than 150 years, prehistorical greater than 150 years
DOGAMI
AGE
String
25
0
0
NAME
Landslide name
DOGAMI
NAME
String
50
0
0
GEOL
Geologic unit that the landslide occurred in
DOGAMI
GEOL
String
50
0
0
SLOPE
Adjacent slope angle in degrees
DOGAMI
SLOPE
Double
8
38
8
HS_HEIGHT
Change in elevation from bottom to top of head scarp
DOGAMI
HS_HEIGHT
Double
8
38
8
FAN_HEIGHT
Change in elevation from top to toe of fan
DOGAMI
FAN_HEIGHT
Double
8
38
8
FAIL_DEPTH
Estimate and/or calculated slope normal thickness of failure depth
DOGAMI
FAIL_DEPTH
Double
8
38
8
DEEP_SHAL
The landslide is shallow seated (less than 15ft) or deep seated (greater than 15ft)
DOGAMI
DEEP_SHAL
String
25
0
0
HS_IS1
Horizontal distance from head scarp to internal scarp no. 1
DOGAMI
HS_IS1
Double
8
38
8
IS1_IS2
Horizontal distance from internal scarp no. 1 to internal scarp no. 2
DOGAMI
IS1_IS2
Double
8
38
8
IS2_IS3
Horizontal distance from internal scarp no. 2 to internal scarp no. 3
DOGAMI
IS2_IS3
Double
8
38
8
IS3_IS4
Horizontal distance from internal scarp no. 3 to internal scarp no. 4
DOGAMI
IS3_IS4
Double
8
38
8
HD_AVE
Calculated average horizontal distance between scarps
DOGAMI
HD_AVE
Double
8
38
8
DIRECT
Direction of movement
DOGAMI
DIRECT
Double
8
38
8
DATA.Deposits.AREA
DATA.Deposits.AREA
Double
8
38
8
AREA
Size of landslide deposit
DOGAMI
AREA
Single
4
0
0
VOL
Volume of landslide deposit
DOGAMI
VOL
Double
8
38
8
REF_ID_COD
Unique code assigned by data steward to each original reference map
DOGAMI
REF_ID_COD
String
50
0
0
MAP_UNIT_L
Map unit label: reference map unit label symbol taken from the original source map
DOGAMI
MAP_UNIT_L
String
50
0
0
DESCRIPTION
Unit descriptor: landslide, flow, talus-colluvium
DOGAMI
DESCRIPTION
String
25
0
0
YEAR
Year of landslide failure
DOGAMI
YEAR
SmallInteger
2
5
0
DATE_RANGE
Date range of landslide failure
DOGAMI
DATE_RANGE
String
25
0
0
REACTIVATION
Date of reactivation of previous landslide failure
DOGAMI
REACTIVATION
String
50
0
0
MONTH
Month of landslide failure
DOGAMI
MONTH
String
2
0
0
DAY
Day of landslide failure
DOGAMI
DAY
String
2
0
0
Shape.STArea()
Shape.STArea()
Double
0
0
0
Shape.STLength()
Shape.STLength()
Double
0
0
0
DATE_MOVE
Full date of landslide failure
DATE_MOVE
String
50
0
0
Simple
FALSE
2542
TRUE
FALSE