"SUMMARY
The Sulphur Herd Management area horses that are present as adopted horses in the Salt Lake City area appear to be of Spanish phenotype. The horses were reasonably uniform in phenotype, and most of the variation encountered could be explained by a Spanish origin of the population. That, coupled with the remoteness of the range and blood typing studies, suggests that these horses are indeed Spanish. As such they are an unique genetic resource, and should be managed to perpetuate this uniqueness. A variety of colors occurs in the herds, which needs to be maintained. Initial culling in favor of Spanish phenotype should be accomplished, and a long term plan for population numbers and culling strategies should be formulated. This is one population that should be kept free of introductions from other herd management areas, as it is Spanish in type and therefore more unique than horses of most other BLM management areas."
Map of the Sulphur HMA:
"BACKGROUND
Detailed historical background of the Sulphur herd management area horses is not available. The limited amount of history available points to this population being an old one, with limited or no introduction of outside horses since establishment of the population. The foundation of the herd is logically assumed to be Spanish, since this the only resource available at the time of foundation.
Spanish type includes sloping croup low set tail, deep body, narrow chest, deep Roman nosed head from side view, broad forehead but narrow face and muzzle from front view, eyes place on side of head, small ears with inwardly hooked tips, small or absent rear chestnuts, small front chestnuts, potential of long hairs on stern area and chin. All colors are possible, although a high proportion of black and its derivatives are consistent with a Spanish origin. Line backed duns, roans, buckskin/palomino, sabino and overo paint, and the leopard complex are also usually Spanish in origin, and grey and tobiano can be. It is frequently the mix of colors and their relative frequency in the population that is more important than the presence of or absence of any one color."
Sulphur HMA Cortez owned by Deborah Elliot of Colorado.
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