According to your specifications, the line in your prj file should be like this :
"ALBERS California NAD27", 9, 62, 7, -120, 0, 34, 40.5, 0, -4000000 Simon Roy GIS Specialist Carto-M�dia, Environnement Illimit� Montreal tel.:514-849-7281 Fax.:514-849-6770 Email : [EMAIL PROTECTED] ----- Original Message ----- From: "Dan Wiens" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, December 28, 2002 9:40 PM Subject: MI-L Projections > The area is California. I'll post the entire text file -- hopefully, this > will help. All I need is a MapInfo projection file. > > Thanks, > > Dan > > LIBRARY : COUNTY > LAYER NAME : PLS > COVERAGE NAME : PLSFILL > > COVERAGE DESCRIPTION: > > The 'PLSFILL' layer is a polygon coverage depicting the > township, range and sections contained in the Public Land > Survey System grid for the State of California. Townships > are roughly six miles square, and are numbered north and > south from an established baseline. Likewise, ranges are > numbered east and west from an established meridian. > California uses three baseline/meridians, these being > Humboldt, Mt. Diablo, and San Bernardino, abbreviated H, M, > and S. > > Meridian, township, range, and section values are > combined in the redefined item MTRS to facilitate relates > from/to other tables. > > PLSFILL differs from the standard PLSA layer in that > landgrants and other areas excluded from the section survey > process are filled in. The primary purpose of this is to > facilitate the georeferencing of phenomena that are > spatially referenced by meridian, township, range, and > section. Though these sections do not legally exist, field > personnel will interpolate to determine what the section > would be if there were legally a section there. This is > common with fire starts as reported by the California > Department of Forestry (CDF). In fact, all of the work to > fill in these excluded areas was completed by CDF to help > georeference fire starts so they could be analyzed with GIS > (Geographic Information Systems) technology. > > > VITAL STATISTICS: > > Datum: NAD 27 > Projection: Albers > Units: Meters > 1st Std. Parallel: 34 00 00 (34.0 degrees N) > 2nd Std. Parallel: 40 30 00 (40.5 degrees N) > Longitude of Origin: -120 00 00 (120.0 degrees W) > Latitude of Origin: 00 00 00 (0.0 degrees) > False Easting (X shift): 0 > False Northing (Y shift): -4,000,000 > Sources: US Geological Survey, > California Department of Forestry > Source Media: Magnetic tape (digital file); mylar maps > Source Projection: Geographic (latitude/longitude) > Source Units: Degrees minutes seconds > Source Scale: 1:100,000 > Capture Method: Scanned/digitized > Conversion Software: ARC/INFO rev. 6.1 > Data Structure: Vector > > ARC/INFO Coverage Type: Polygon > ARC/INFO Precision: Double > ARC/INFO Tolerances: 2 meters > Number of Features: 157,295 > Layer Size: 80 MB > Data Updated: December 1999 > > DATA DICTIONARY: > > DATAFILE NAME: PLSFILL.PAT > COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC > ------------------------------------------- > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 PLSFILL# 4 5 B - > 21 PLSFILL-ID 4 5 B - > 25 MERIDIAN 1 1 C - > 26 TOWNSHIP 4 4 C - > 30 TOWNDIR 1 1 C - > 31 RANGE 4 4 C - > 35 RANGEDIR 1 1 C - > 36 SECTION 2 2 C - > 38 X-COORD 8 18 F 5 > 46 Y-COORD 8 18 F 5 > ** REDEFINED ITEMS ** > 25 MTRS 13 13 C > > > AREA : The area of the polygon in square coverage units. > > PERIMETER : The length of the polygon perimeter of the polygon > in coverage units. > > PLSFILL# : The software-assigned unique integer identification > number. > > PLSFILL-ID: A user-assigned identification number. > > SECTION : Section number (less than or equal to 36) > > MERIDIAN : Abbreviation of the name of the meridian > > TOWNSHIP : Township number > > TOWNDIR : Township direction (N=north, S=south) > > RANGE : Range number > > RANGEDIR : Range direction (E=east, W=west) > > MTRS : Concatenation of Meridian, Township, Towndir, > Range, Rangedir, Section. > > X-COORD : X coordinate of the section's polygon label; most likely > the geographic centroid of the section (in coverage units). > > Y-COORD : Y coordinate of the section's polygon label; most likely > the geographic centroid of the section (in coverage units). > > NOTE: Both Township and Range store what is typically a > one or two digit number as a 4 byte character. This > is to manage a few half-sections that exist in the > state. These numbers all have a decimal and a > single decimal of value 0 or 5, and are > right-justified in their character fields. > > > DATA QUALITY ASSESSMENT: > > The following are subjective comments regarding this data. > > The layer is as complete as the USGS 100K quad sheets. The > feature accuracy is good and attribute accuracy is very > good. It also has all pertinent section information. BE > AWARE THAT THIS LAYER CONTAINS SECTIONS THAT ARE NOT > LEGALLY RECOGNIZED! > > DATA CONTACT: > > Contact Name: Steve Flatt > Contact's Phone: 916-464-4584 > > DOCUMENTATION DATES: 12/16/1999, 2/24/2000 > > > --------------------------------------------------------------------- > List hosting provided by Directions Magazine | www.directionsmag.com | > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > Message number: 4701 > > --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 4704
