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The downloadable ZIP file contains an number of Esri shapefiles as described below. This data set provides the spatial information used to complete a post fire inventory and assessment for the 2015 Tepee Springs Fire in Idaho County, Idaho. The fire burned 95, 708 acres within Idaho County, Idaho in August 2015. Data was prepared by several agencies including US Forest Service, USDA Natural Resources Conservation Service, US Geological Survey, and the Nez Perce Soil and Water Conservation District. Data was prepared for the North Central Idaho Wildfire Restoration Group as part of their efforts in preparing the North Central Idaho Wildfire Inventory and Assessment Report (2015).,

The downloadable ZIP file contains an number of Esri shapefiles as described below. This data set provides the spatial information used to complete a post fire inventory and assessment for the 2015 Slide Fire in Idaho and Idaho County, Idaho. The fire burned 10,163 acres within Idaho County, Idaho in August 2015. Data was prepared by several agencies including US Forest Service, USDA Natural Resources Conservation Service, US Geological Survey, and the Nez Perce Soil and Water Conservation District. Data was prepared for the North Central Idaho Wildfire Restoration Group as part of their efforts in preparing the North Central Idaho Wildfire Inventory and Assessment Report (2015).,

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This data release is a field-verified inventory of postfire debris flows for the 2021 Dixie Fire following a 23-25 October 2021 atmospheric river storm and 12 June 2022 thunderstorm. The “README.txt” file describes the fields for the “Inventory.csv” file. The “Chambers” and “Chips” rain gage data referenced in the inventory are included as: “Chambers-Oct2021-Storm.csv”, “Chambers-Jun2022-Storm.csv”, “Chips-Oct2021-Storm.csv”, and “Chips-Jun2022-Storm.csv.” The fields for the rain gage data, which includes the geographic locations of the gages, are also described in the “README.txt” file. Fields with value “-9999” indicate that data are not available or do not exist.

Summary This data release is an inventory of runoff-generated postfire debris flows compiled from 17 burn areas across five western U.S. states. Debris-flow data from the following fires are included: - Arizona: 2017 Pinal and 2019 Woodbury Fires - California: 2020 Apple, 2020 Bond, 2015 Butte, 2020 El Dorado, 2014 El Portal, 2018 Ferguson, 2016 Fish (San Gabriel Complex), 2011 Motor, and 2017 Thomas Fires - Colorado: 2020 Cameron Peak and 2018 Spring Creek Fires - New Mexico: 2018 Buzzard Fire - Washington: 2021 Cedar Creek, 2021 Cub Creek 2, and 2021 Muckamuck Fires The included table, “Combined_Inventory.csv”, contains debris-flow records represented as “1” or “0”, indicating whether a debris flow did occur or did not occur, respectively, in response to a given storm. In addition, for each observation, the corresponding fire name, observation location, storm date, and rainfall intensities are included. The “README.txt” file describes the fields (including units) for “Combined_Inventory.csv” in more detail. "0" values in the "Response" column indicate that no debris flow was observed, but a hydrologic response with lower sediment content may or may not have occurred. Assembling these data in a unified format involved a combination of compiling data from published sources and synthesizing new debris-flow records from observations made by US Geological Survey staff and partners. All records in the included file, "Combined_inventory.csv", are credited according to the individuals or publications that provided the observation information in the column labeled “ObservationSource”. To the best of our knowledge, all records included here correspond to debris flows generated by runoff, not by other mechanisms. These records have only limited spatial and temporal extent: they should not be taken as a comprehensive record of the hydrologic response in every catchment in response to every postfire storm. Fields with value “-9999” indicate that data are not available or do not exist. Data Credits Special thanks go to many colleagues who provided or helped to assemble debris-flow observation and/or rainfall data, including: Ann Youberg (Arizona Geological Survey); Paul Burgess, Jeremy Lancaster, Don Lindsay, John Oswald, and Brian Swanson (California Geological Survey); Chad Neptune (California State Water Resources Control Board); Stephanie Kampf, Lee MacDonald, Megan Sears, and Ellen Wohl (Colorado State University); Luke McGuire (University of Arizona); Maya Daurio (University of British Columbia); Laura Hempel, Jason Kean, Francis Rengers, Brittany Selander, and Matthew Thomas (U.S. Geological Survey); and Mitchell Allen and Kate Mickelson (Washington Geological Survey).

This data release is a field-verified inventory of postfire hydrologic response for the 2020 CZU Lightning Complex, River Fire, Camel Fire, and Dolan Fire following a 26-29 January 2021 atmospheric river storm sequence. Postfire hydrologic response types include a) no response, b) minor response, and c) major response. A “minor” response was deemed capable of impairing infrastructure functioning (e.g., deposition or erosion along a road that could be regraded by mechanized earth-moving equipment within a matter of hours) or causing minor bodily injury (e.g., abrasions, sprains, or broken bones). A “major” response was deemed capable of causing sustained infrastructure impairment (e.g., damage to roads requiring weeks or more of emergency repair efforts or residential structures made uninhabitable) or serious bodily injury (e.g., protracted disfigurement or death). The README.txt file describes the data fields for the “Inventory.csv” file. Fields with value “-9999” indicate that data are not available or do not exist.