Land Map Scales for DLS & PLSS
   1:396     1 inch = 50 links
   1:792     1 inch =  1 chain   
   1:1584    1 inch =  2 chains
   1:3960    1 inch =  5 chains = 1/16 Mile  
   1:7920    1 inch = 10 chains =  1/8 Mile   
   1:15840   1 inch = 20 chains =  1/4 Mile
   1:31680   1 inch = 40 chains =  1/2 Mile
   1:63360   1 inch = 80 chains =    1 Mile
      
   1:600     1 inch =  50 feet
   1:1200    1 inch = 100 feet

  
Land Surveying Units of Measure
   1 mile    = 8 furlongs;  80    chains; 320 rods;  5,280 feet  1,609.344  meters
   1 furlong = 1/8 mile;    10    chains;  40 rods;    660 feet
   1 chain   = 4 rods;      66    feet;   100 links;

   1 rod     = 25 links;    16.5  feet
   1 link    = 1/100 chain;  7.92 inches
   
   1 acre    = 10     square chains;  160 square rods; 4,840 square yards; 43,560 square feet; 
   1 hectare = 10,000 square meters;   
   
   1 acre    ≅ approximately 0.4047 hectare; 
   1 hectare ≅ approximately 2.4711 acres;  
  

      1 link                               7.92 inches
     25 links make a rod, pole or perch   16.5  feet
    100 links make a chain                66    feet
   1000 links make a furlong             660    feet
   8000 links make a mile               5280    feet

   The international foot is defined to be exactly    0.3048 meters 
   The international inch is defined to be exactly   25.4    millimeters
   The international mile is defined to be exactly 1609.344  meters

   1 US Survey Foot is  1200/3937 meter exactly (1893)
   

 
USGS Map Scales
   1:12,000   1 inch = 1,000 feet                       Accuracy +/- 33 feet
   1:24,000   1 inch = 2,000 feet 1 inch = 7.5 minutes  Accuracy +/- 40 feet
   1:50,000   1 inch = 4,166 feet

   1:  1,000  1 cm   =    10 meters
   1: 10,000  1 cm   =   100 meters   Square Mile fits on an 8.5" x 11"
   1:100,000  1 cm   =  1000 meters   


 
US Military Map Scales
  
   1:    5,000   1 cm =                      50 Meters  City (detailed)
   1:   12,500   1 cm =                     125 Meters  City Topographic

   1:   25,000   1 cm =   0.25 kilometer    250 Meters
   1:   50,000   1 cm =   0.50 kilometer    500 Meters  Standard Scale The map of choice for land navigators
   1:  100,000   1 cm =   1    kilometer  1,000 Meters  Medium   Scale
   1:1,000,000   1 cm =  10    kilometer 10,000 Meters  Small    Scale

   1:  250,000   1 cm =  2.5   kilometer  2,500 Meters  Medium   Scale Topographic maps 
                                                                       contain additional information needed 
                                                                       in joint air-ground operations 

 
US Military Map Grid Intervals
  
                                               Map Grid
   Product Type                    Map Scale   Unit Intervals(*)
   Urban maps                       1:3,000       100 meters
                                    1:12,500    1,000 meters
   Topographic Map (TM)             1:25,000    1,000 meters
                                    1:50,000    1,000 meters
                                   1:100,000    1,000 meters or 10,000 meters
   Joint Operations Graphic (JOG)  1:250,000   10,000 meters
                                   1:500,000   10,000 meters
                                 1:1,000,000  100,000 meters with ticks at 10,000 meters


   (*) All Map Grid Unit Intervals shall start with a number '1'. 

       NGA.STND.0037_2.0.0_GRIDS 
         
        
      
         

 
Alberta Survey Plans and Sketches
 
 
    Scale may only be
      1:500
      1:1,000
      1:2,000
      1:2,500
      1:5,000 
      1:10,000  A Section of Land fits on an 8.5" x 11" paper
         
    Plan Size
      No smaller than    21.59 x  27.94 cm  -  Letter Size  8.5  by  11    inches 
      No larger  than    75.00 x 300.00 cm                 29.82 by 118.11 inches
                           
   
   There must be a 1 cm margin of white space from the border of the plan. 
      
 
Paper Sizes and Typesetting
     

             Centimeters       Inches          Points  
            Width  Height   Width  Height   Width  Height 
            
   Letter   21.59  27.94     8.5     11      612    792
   Legal    21.59  35.56     8.5     14      612   1008
   Ledger   27.94  43.18      11     17      792   1224

   There are 72 points to an inch.            
      (postscript Knuth) (moveable type Gutenberg)



 
Web Browser Screen and Print "Sizes"
  

   CSS (the javascript canvas stylesheet people) says
      there are 96 CSS pixels to an inch  

      that one CSS pixel should be 
       shown as a least one physical device pixel

      that one CSS pixel should be 
        shown with square crisp physical output device edges
         not blurred, not aliased, not smoothed, not a fuzzy vague blob


    There are '96 CSS pixels to HP Laserjet inch' and I have tested it. (dec 8, 2024)

   
Map Colors

     https://muir-way.com/blogs/articles/map-colors