Style IV Maps

(I am going to go through and talk about each map type found in the Hexbooks, and I am starting right in the middle.)

This is your basic Hex map.  It is made up of small hexes that are 6 miles from flat side to flat side, or almost exactly 7 miles from corner to corner.  Then they are also grouped into larger 24 mile across hexes.

While Judges Guild and classic D&D used 5 mile hexes for the base of their system, there are pretty good reasons to use a six mile hex.  

Additionally there is a general rule that 24 miles is about what a person can travel in a day, in good conditions on flat land.  Thus the 24 mile hexes are handy for general distance-per-day estimations, and just multiply the number of days by two if the 24-mile hex is full of swamp or mountainous areas.

(The Style IV map is found in Hexbook 001 & Hexbook 002, but Hexbook 004 is almost entirely devoted to this map.)