This polygon shapefile contains information related to Notices of Timber Operations (NTOs) in California. Boundaries and feature representations are derived from NTOs of record and captured at a scale of 1:24,000 or larger with the aid of ancillary data such as USGS Topographic Quadrangle maps and NAIP imagery from 2005, 2009, 2010, 2012, 2014, 2016, and 2018. Fire and Resource Assessment Program (Calif.). (2020). CAL FIRE Notice of Timber Operations (NTOS), 1991-2019. Fire and Resource Assessment Program (Calif.). Available at: https://purl.stanford.edu/yj063sn6166