Grain-size data for sediment samples collected in Whiskeytown Lake, northern California, in 2018 and 2019

Note: this data release has been deprecated. Find the updated version here: https://doi.org/10.5066/P9TUTK7J

The Carr Fire ignited in northern California in July 2018, and ultimately burned almost 300,000 acres (approximately half on federal lands), resulting in a federal major-disaster declaration (DR-4382). Approximately 93% of the area within Whiskeytown National Recreation Area was burned extensively during the Carr Fire, including all of the landscape surrounding and draining into Whiskeytown Lake. Whiskeytown Lake, a federally managed reservoir, subsequently acted as a sediment trap for material eroded from hillslopes and streambeds in the aftermath of the Carr Fire. The U.S. Geological Survey measured topographic change associated with sediment deposition and erosion in and around Whiskeytown Lake after the Carr Fire, in order to support calculations of post-fire sediment yield from the surrounding landscape. This data release includes grain-size data from sediment samples collected in submerged and subaerial regions in Whiskeytown Lake and around the reservoir margin. Data collection and analysis have been supported by funds through H.R. 2157, the Additional Supplemental Appropriations for Disaster Relief Act of 2019.