The mobilization situation is even worse than you’d mentioned. The Utah expedition, particularly the latter elements, was an absolute disaster. The Second Dragoons had an exceptionally tough time, as their late notification led to a winter march through the Rockies. The were pretty much left to their own devices to assemble and provision themselves for the march. Provisions and mounts were both tremendous problems. Fortunately the regimental quartermatser officer was a determined young captain by the name of John Buford….