Steven Sobieszczyk 2010 vector digital data http://water.usgs.gov/lookup/getspatial?insantiam_LandslideInventory_Photos Data points represent locations of photographs taken of landslides in the Little North Santiam River Basin, Oregon. Photos were taken in spring of 2010 during field verification of landslide locations (deposits previously mapped using LiDAR-derived imagery). The photographs depict various landslide features, such as scarps, pistol-butt trees, or colluvium deposits. This work was completed as part of the Master's thesis "Turbidity Monitoring and LiDAR Imagery Indicate Landslides are Primary Source of Suspended-Sediment Load in the Little North Santiam River Basin, Oregon, Winter 2009-2010" by Steven Sobieszczyk, Portland State University and U.S. Geological Survey. Data layers in this geodatabase include: landslide deposit boundaries (Deposits); field-verfied location imagery (Photos); head scarp or scarp flanks (Scarp_Flanks); and secondary scarp features (Scarps).The geodatabase template was developed by the Oregon Department of Geology and Mineral Industries (Burns and Madin, 2009). Photographs were taken to document and verify location of landslides in the Little North Santiam River Basin, Oregon. The photograph locations were identifed with cellphone GPS and plotted manually in the field using LiDAR-derived basemap. Photographs correspond to landslide deposits and scarp features based on UNIQUE_ID. This data set is one of 4 feature data sets included in a basin-wide landslide inventory. The landslide inventory is one of the essential data layers used to delineate regional landslide susceptibility. This landslide inventory is not regulatory, and revisions can happen when new information regarding landslides is found or future (new) landslides occur. Therefore, it is possible that landslides within the map area were not identified or occurred after the map was prepared. This landslide inventory is intended to provide users with basic information regarding landslides within the Little North Santiam River Basin. The geologic, terrain, and climatic conditions that led to slope failures in the past may provide clues to the locations and conditions of future slope failures, and it is intended that this map will provide useful information to develop regional landslide susceptibility maps, guide site-specific investigations for future developments, assist in regional planning, and mitigation of existing landslides. Citations: Burns, W.J., and Madin, I.P., 2009, Protocol for inventory mapping of landslide deposits from light detection and ranging (LIDAR) imagery: Oregon Department of Geology and Mineral Industries Special Paper 42, 30 p. 2009 ground condition Complete None planned -122.561827 -122.233760 44.866937 44.793310 None Photographs landslide inventory inlandWaters None Little North Santiam River Basin Elkhorn Elkhorn Valley Marion County Oregon None 2009 2010 None None. The U.S. Geological Survey should be acknowledged as the data source in products derived from these data. Steven Sobieszczyk U.S. Geological Survey Hydrologist mailing and physical address

2130 SW 5th Ave.

Portland OR 97201 USA 503-251-3208 503-251-3470 ssobie@usgs.gov Warning: Although accurate at the time of production, this information may have become obsolete. See the Metadata_Reference_Information section for a current contact. http://water.usgs.gov/GIS/browse/LNsantiam_LandslideInventory.jpg Illustration of data set. JPG Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000 Steven Sobieszczyk 2010 vector digital data http://water.usgs.gov/lookup/getspatial?lnsantiam_LandslideInventory_Deposits Steven Sobieszczyk 2010 vector digital data http://water.usgs.gov/lookup/getspatial?lnsantiam_LandslideInventory_HeadScarp Steven Sobieszczyk 2010 vector digital data http://water.usgs.gov/lookup/getspatial?lnsantiam_LandslideInventory_Scarps Photographs represent field conditions present in spring 2010. Locations were inspected for accuracy, completeness, and logical consistency. Data are complete. +/- 50 feet unknown Coordinates acquired with cellphone GPS and plotted directly on basemap in the field. Where reception was poor or non-existent, locations plotted on basemap (with aid of high-resolution aerial imagery) based on inferred location. Final locations digitized onscreen using basemap inventory. 2010 Steven Sobieszczyk U.S. Geological Survey Hydrologist mailing and physical address

2130 SW 5th Ave.

Portland OR 97201 USA (503) 251-3208 (503) 251-3470 ssobie@usgs.gov Vector Entity point 46 Lambert Conformal Conic 43.000000 45.500000 -120.500000 41.750000 1312335.958005 0.000000 coordinate pair 0.000328 0.000328 international feet D_North_American_1983_HARN Geodetic Reference System 80 6378137.000000 298.257222 North American Vertical Datum of 1988 0.000100 feet Explicit elevation coordinate included with horizontal coordinates Photos Location of photographs of landslide features U.S. Geological Survey OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. SHAPE Feature geometry. ESRI Coordinates defining the features. UNIQUE_ID Unique ID that relates photograph to mapped landslide deposit U.S. Geological Survey Coordinates defining the features. Picture Embedded image of landslide feature U.S. Geological Survey Coordinates defining the features. GlobalID ID used in Landslide Inventory geodatabase U.S. Geological Survey Coordinates defining the features. Picture_ID Describes how many photographs were taken for each UNIQUE_ID U.S. Geological Survey Photo_1 Photo_5 Picture_Descr Brief description of photographed landslide U.S. Geological Survey Complex Complex landslides are combinations of two or more types. A common complex landslide is a slump-earth flow, which usually exhibit slump features in the upper region and earth flow features near the toe. Burns and Madin, 2009 Earthflows Earth Flows commonly have a characteristic hourglass shape. The slope material liquefies and runs out, forming a bowl or depression at the head. Burns and Madin, 2009 Debris flows Channelized Debris Flows commonly start on a steep, concave slope as a small slide or earth flow into a channel. As this mixture of landslide debris and water flows down the channel, it pick ups more debris, water, and speed, and deposits in a fan at the outlet of the channel. Burns and Madin, 2009 Earth Slide Slides are downslope movement of soil or rock on a surface of rupture (failure plane or shear-zone). Rotational slides move along a surface of rupture that is curved and concave. Translational slides displace along a planar or undulating surface of rupture, sliding out over the original ground surface. Burns and Madin, 2009 Lists each photograph ID, its corresponding landslide (accompanying feature class), and what type of landslide is present. Burns, W.J., and Madin, I.P., 2009, Protocol for inventory mapping of landslide deposits from light detection and ranging (LIDAR) imagery: Oregon Department of Geology and Mineral Industries Special Paper 42, 30 p. U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

445 National Center

Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://water.usgs.gov/user_feedback_form.html Downloadable Data Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials. The use of firm, trade, or brand names in this report is for identification purposes only and does not constitute endorsement by the U.S. Geological Survey. The names mentioned in this document may be trademarks or registered trademarks of their respective trademark owners. ESRI Geodatabase Feature Class PKZIP compression Winzip 1000 http://water.usgs.gov/GIS/dsdl/LNsantiam_LandslideInventory_gdb.zip None. This dataset is provided by USGS as a public service. 20100927 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

445 National Center

Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+insantiam_LandslideInventory_Photos FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998