Daylilydreams
I would recommend you contact a horse farm, a riding stable for sources of local horse manure. The big box stores don't carry it. When I lived up north, I found several farms that were close and I organized a mucking party, where members of my garden club would get together once a month and go out and get horse manure for our gardens. It helped the owner out and us as well. It was a lot of fun and once the member saw how well the horse manure was for their garden beds, the number increased each time.