Modoc National Forest, USDA Forest Service 20040901 raster digital data https://wildlife.ca.gov/Data/BIOS ftp://ftp.wildlife.ca.gov/BDB/GIS/BIOS/Public_Datasets/001_099/ds052.zip This data set is a mosaic made from aerial photographs acquired from the Modoc National Forest with photo dates throughout the summer of 1946. The 126 original photographs were scanned and orthorectified in December 2002. The aerial photographs were scanned and orthorectified by the Geographical Information Center, California State Univ., Chico, using PCI Ortho software in December 2002. The mosaic was created in September 2004. Additional mosaic reformatting was done in 2005 and 2020 by the California Department of Fish and Wildlife. The purpose of these aerial photos is to document the historical location and distribution of aspen stands and to be used in comparison with documented changes since these photos were taken. 19460601 19460901 ground condition Complete None planned -120.380084 -120.077661 41.547274 41.063512 None photograph, stand location, aspen, stand size, Populus tremuloides, aerial ISO 19115 Topic Categories location imageryBaseMapsEarthCover None Modoc, California, Marner Mountains None Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data. California Department of Fish and Wildlife BIOS@wildlife.ca.gov California Department of Fish and Wildlife BIOS@wildlife.ca.gov Modoc National Forest, Geographical Information Center (Calif. State Univ., Chico), California Department of Fish and Wildlife Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333 The rectified TIFF images were mosaiced using a "blend" algorithm to handle overlaps. 20020902 The mosaic was projected from the source coordinate system (UTM Zone 10, NAD83) to the California (Teale) Albers coordinate system. 20020903 The aerial photographs were scanned and orthorectified by the Geographic Information Center, California State Univ., Chico, using PCI Ortho software. 20021201 Additional mosaic reformatting. 20200916 Raster Grid Cell WGS 1984 Web Mercator Auxiliary Sphere PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]] coordinate pair 0.000000006714873101998366 0.000000006714873101998366 meter D WGS 1984 WGS 1984 6378137.0 298.257223563 20200929 California Department of Fish and Wildlife BIOS@wildlife.ca.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time