20250814 20363600 1.0 TRUE CreateMosaicDataset \\amznfsxghqcfqsg.mdgov.maryland.gov\share\gis_imagery_data\ImageServices\Historical\MD_Martenet_1865.gdb MD_Martenet_1865 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]] # # NONE # AddRastersToMosaicDataset \\amznfsxghqcfqsg.mdgov.maryland.gov\share\gis_imagery_data\ImageServices\Historical\MD_Martenet_1865.gdb\MD_Martenet_1865 "Raster Dataset" '\\amznfsxghqcfqsg.mdgov.maryland.gov\share\gis_imagery_data\ImageServicePublishing\PublishImageServices\doit-imap-imagery-prod.acs\RawImages\MDOT_SHA_Historical\19th Century Maps\Statewide\1865 Martenet\MD_1865_MartenetSJ.tif' UPDATE_CELL_SIZES UPDATE_BOUNDARY NO_OVERVIEWS # 0 1500 # # SUBFOLDERS ALLOW_DUPLICATES NO_PYRAMIDS NO_STATISTICS NO_THUMBNAILS # NO_FORCE_SPATIAL_REFERENCE NO_STATISTICS # NO_PIXEL_CACHE C:\Users\aa.john.shiu\AppData\Local\ESRI\rasterproxies\MD_Martenet_1865 AddRastersToMosaicDataset \\amznfsxghqcfqsg.mdgov.maryland.gov\share\gis_imagery_data\ImageServices\Historical\MD_Martenet_1865.gdb\MD_Martenet_1865 "Raster Dataset" '\\amznfsxghqcfqsg.mdgov.maryland.gov\share\gis_imagery_data\ImageServicePublishing\PublishImageServices\doit-imap-imagery-prod.acs\CloudOptimizedImages\MDOT_SHA_Historical\19th Century Maps\Statewide\1865 Martenet\MD_1865_MartenetSJ.tif' UPDATE_CELL_SIZES UPDATE_BOUNDARY NO_OVERVIEWS # 0 1500 # # SUBFOLDERS ALLOW_DUPLICATES NO_PYRAMIDS NO_STATISTICS NO_THUMBNAILS # NO_FORCE_SPATIAL_REFERENCE NO_STATISTICS # NO_PIXEL_CACHE C:\Users\aa.john.shiu\AppData\Local\ESRI\rasterproxies\MD_Martenet_1865 150000000 5000 ItemDescription Historical 1865 map of Maryland by Simon J. Martenet C.E. and Schmidt & Trowe. <div style='text-align:Left;'><div><div><p><span>MDOT SHA provides a series of georeferenced historical maps and aerials for research and public use. The image is publicly available from the Library of Congress online catalogue (https://www.loc.gov/item/94681799/). The Martenet’s Map of Maryland was completed 1865 by Simon J. Martenet C.E., engraving by Schmidt &amp; Trowe, and was commissioned by U.S. Congress. The complete original title of the document is “Martenet's map of Maryland : including the District of Columbia, a sketch of Delaware, and a portion of northern and eastern Virginia showing some of the most interesting localities of the late war”. Maryland Environmental Service GIS on behalf of SHA attained the files from their sources, georeferenced each file using ESRI ArcGIS Pro to modern imagery using landmarks or coordinate tic marks if provided, and quality controlled for accuracy. This map is matched to modern geography as closely as possible based on the limitations of the original document and available imagery. </span></p></div></div></div> MD iMAP, MDOT SHA, Library of Congress Geography and Map Division, Simon J. Martenet MD_Martenet_1865 MD Historical Map 19th Century Martenet MDOT SHA <div style='text-align:Left;'><div><div><p><span>The Spatial Data, and the information therein, (collectively the "Data") is provided "as is" without warranty of any kind, either expressed, implied, or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct, indirect, incidental, consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data, nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.</span></p></div></div></div> 20260803