Theme:               Historic Fire Perimeters


Revision Date: September 2003 by Salmon Mountain Forestry, 
for the Karuk Tribe

The layer has been clipped to the mid Klamath and 
only includes fires over 1000 acres that occured after 1950


                      IDENTIFICATION INFORMATION



Comments:            Fire perimeters were obtained from 1:126720 
                     Ranger District Fire Atlases.  Polygons were 
                     ocularly transferred to 1:62500 manuscripts.

                     District Atlases contain all fires > 40 acres in 
                     size.

                     Dates covered:
                     All districts, 1950 to present
                     Salmon River,  1911 to present
                     

                      SOURCE INFORMATION

Source System:       Arc/Info
Source Scale:        1:126720
Source Projection:   UTM Zone 10
Capture Method:      scanner

                         


GIS Contact:        Jim Villaponteaux 

Phone:530-462-4655  Email:jvptx@pcweb.net  
Address: HC4 Box 325  
         Sawyers Bar, CA 96027

                        
                      PROCESSING INFORMATION

Theme Generation:    

Lineage:             

For more detailed information, see the Edit Log for this theme.                         ATTRIBUTE INFORMATION
=====================================================================-
==

System Software:    Arc/Info

Table Name:.PAT
============================================
Item Name:                 data  Item Type:           char Item 
Length:   30

 Item Value                 Description

eg. 87012317099             Concatenations of 5-character strings, 
                            where the first two characters represent 
                            the year in which the fire occurred and 
                            the remaining 3 characters are the 
                            incident number.  Where overlaps occur 
                            (area burned multiple times), the string 
                            is extended, with the most recent fire 
                            always occupying the first position in the 
                            string.
                            The example string above can be 
                            interpreted as Incident# 99 occurring in 
                            1917, reburned in 1987 as incident# 123

Item Name:         y1, y2, etc.  Item Type:integer, redefined    Item 
Length:   2

 Item Value                 Description

eg. 87                      Year in which fire occurred


Item Name:       yc1, yc2, etc.  Item Type:char, redefined Item 
Length:   2

 Item Value                 Description

eg. 87                      Year in which fire occurred, expressed as 
                            a character string.  Useful for coverage 
                            labeling purposes, so that polygons 
                            containing no data show as null, rather 
                            than "0".  Example:  polygontext 
                            fire_perim yc3|yc2|yc1EDIT LOG