See the discussion page for this image on Wikimedia Commons for issues with the accuracy of certain features depicted in this map.

This map uses a UTM projection in zone 15 North. The EPSG Geodetic Parameter Dataset code for the projection used here is 26915. The "proj" description of the projection is "+proj=utm +zone=15 +ellps=GRS80 +datum=NAD83 +units=m +no_defs". A world file for this reference system that describes the location and extent of the area depicted is:

20.815690667381961
0
0
-20.815690667381961
681065.79387399356
4171003.9702136661

That is to say that each pixel is 20.82 meters square, and the center of the upper-left pixel in the UTM 15N reference system is at easting 681065.79387399356 and northing 4171003.9702136661.

In NAD83 coordinates:

Upper left corner

90°56'49.644"W 37°40'6.481"N

Map center

90°46'56.997"W 37°34'40.717"N

Lower right corner

90°37'5.807"W 37°29'14.168"N

• Missouri conservation areas: ftp://msdis.missouri.edu/pub/state/st_mdcland.zip^{[dead link]}
• Missouri state parks: ftp://msdis.missouri.edu/pub/state/st_modnr_lands.zip
• National forests & wilderness areas: http://dds.cr.usgs.gov/pub/data/nationalatlas/fedlanp020.tar.gz
• Missouri numbered highways: ftp://msdis.missouri.edu/pub/state/transportation/st_hwymo06.e00.zip
• Missouri supplemental routes: ftp://msdis.missouri.edu/pub/state/transportation/st_hwyrt06.e00.zip
• 1/3-Arc Second National Elevation Dataset: http://www.nationalmap.gov
• Rivers and streams: ftp://msdis.missouri.edu/pub/state/st_primriv.e00.gz
• Counties: ftp://msdis.missouri.edu/pub/state/st_county.zip
• Populated places: http://www2.census.gov/geo/tiger/TIGER2007FE/29_MISSOURI/fe_2007_29_place00.zip
• Ozark Trail: OTEntireJan2009.shp received via email from John Roth, the late president of the Ozark Trail Association.

Consult the metadata in each dataset for information about the origins of the data and the appropriateness of using the data for various purposes at various scales. Consult the disclaimers attached to each dataset. In no case should this map be relied upon as authoritative in terms of legal boundaries and land ownership. Observe all posted signs. This map is meant to be used as a general indication of location and extents of certain features and lands.

I, the copyright holder of this work, hereby publish it under the following licenses:

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• share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue

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