Color has definitely been a fun part of our breeding program, making each spring an exciting time to welcome new healthy foals and discover the results that started eleven months previous.
GMR's RMH stallion, Kentucky Tornado is a breeder's dream. His foundation qualities of producing sensible, well-gaited foals are only enhanced with his magnificent color possibilities.
Being red gene negative 'EE' (will not produce chestnut) and caring one copy of the silver dapple gene 'nZ', we can expect chocolate, black, bay and 
red chocolate (silver dapple bay) from Kentucky Tornado's genotype.
Some of our mares add a little extra color potential with the cream gene and the possibility of a silver buckskin, buckskin or smoky black.
Our latest addition will offer champagne to our breeding program. GMR breeding foundation lies in the sought after traditional qualities of the Mountain Horse in temperament, conformation and gait ~ these are our first priorities ... color just adds a little 'Tornado Twist!
Check out the FOAL COLOR CALCULATOR at Animal Genetics Incorporated.
It is great! Enter the foal's sire and dam's color and see what color the foal might be.
The site gives you possible offspring coat colors and their probabilities of foal coat combinations from the parent coat color and pattern information. Homozygous information can even be added to narrow potential percentages.
HORSE COLOR
EXPLAINED
A Breeder's Perspective by Jeanette Gower
Horse Color Explained is a treasure trove of in-depth information
for the serious student and the pleasure horse breeder alike!
A color bible that will forever be in our library.
Silver Dilution can now be tested for! 
There are a few coat colors like chestnut and palomino that will mask a silver dilution. The Silver (or chocolate color) expresses itself on black pigment.
Before 2006 a silver (chocolate) offspring produced by a chestnut/palomino and non-silver was the only evidence that a chestnut color based horse carried the silver dilution.
Silver dilution testing has only recently been made available to the general public and is now a very useful breeding tool. Silver Color Coat DNA Testing available through the Animal Genetics Incorporated and University of Davis.