Landscape Recycling Center sells the product described below:

Stable-To-Soil Enhancer
 (Formerly Mushroom Compost)
Up to 35-Gallon Bags/Containers: $7.25 | Bulk: $36/cubic yd

Light brown and very fine textured material that can retain manure odor for several weeks

Made from: Hardwood bark, straw material and horse manure from local stables that is composted into a high-quality finished product.

Applications: Natural fertilizer for non-food crop landscapes. Excellent source of nitrogen (N), phosphorus (P) and potassium (K). In addition, manure returns organic matter and other nutrients such as calcium, magnesium and sulfur to the soil, building soil fertility and quality.