Yosemite National Park - Buildings - Open Data

This vector polygon dataset represents the building features in Yosemite National Park. This dataset utilizes the updated NPS Building Spatial Data Standard dated 12/15/20217. There are ongoing efforts to improve the spatial and attribute information of the buildings. Initial polygons were digitized from various sources with unknown provenance, likely satellite imagery or CAD files. Many existing building polygons were added or updated from 3D building footprints covering the 2019 Yosemite National Park 3DEP Lidar project area. New buildings are COGOed where possible, otherwise digitized from satellite imagery or extracted from DWG files on an as-needed basis. In 2025 a volunteer georeferenced old maps of the park and digitized some buildings that have been removed since the time of the maps' making. Information about how each building polygon was created is in the Map Method, Map Source, and Source Date fields. Polygons are meant to represent the building footprint, though there are still buildings represented with roof outlines, particularly private residences and others digitized from satellite imagery. Buildings with more than one FMSS Locations are split to delineate the multiple assets, even though the footprint is connected. When two or more footprints share a roof they are represented with multi-part polygons that represent the foundations of the buildings. Attributes in this dataset include identifier fields (building name and label fields, FMSS Location ID, and various other ID fields), the current state of the structure (Status and Is Extant fields), classification (Functional and Facility Use fields as well as Seasonality, Building Code, and Building Type), as well as record level metadata fields. Efforts by various staff members over the years have standardized and corrected many of these fields for most of the buildings, but inaccuracies remain. This dataset is meant for both public and internal use, with sharing status described in the Public Map Display and Data Access fields. Non-extant buildings are marked as No Public Map Display but remain a part of the dataset to provide insight into what the park used to look like. IRMA Data Store Reference