Ouray County Soil Data
Ouray County, Colorado
USDA SSURGO / PHZMAvg pH
N/A
Texture
Unknown
Drainage
N/A
Organic Matter
N/A
Hydrologic Group
N/A
Data Story
About Soil in Ouray County, Colorado
Rugged San Juan Chemistry
Ouray County's dramatic vertical landscape currently lacks comprehensive digital soil taxonomic data. Local pH levels likely vary wildly between acidic forest floors and alkaline limestone outcrops compared to the 6.5 national median.
Skeletal Mountain Textures
Official sand, silt, and clay percentages are unavailable for this county. Most usable soil is found in narrow valleys and is characterized by high rock content and varying degrees of glacial till.
Fertility in the High Country
Specific organic matter and water capacity data are missing for this region. To match the state organic matter average of 2.18%, local gardeners often rely on forest-derived mulch and mountain-specific composting.
Steep Slope Hydrology
While formal drainage classes are not listed, the county's extreme topography ensures rapid runoff into the Uncompahgre River. Managing drainage is a critical first step for any building project or garden terrace.
The Switzerland of America
Ouray County is in Hardiness Zone 5b, which is perfect for cool-weather flowers and hardy root crops. Focus on early-maturing varieties to beat the swift arrival of mountain autumns.
Soil Composition
Composition data not available for this county.
Soil pH
pH data not available for this county.
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Hydrologic group data not available.
Drainage Class
Drainage class data not available.
Soil Profile
Dominant texture: Unknown
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Soil Amendment Products
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Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Ouray County have?
Ouray County's soil is classified as Unknown. This indicates the relative proportions of sand, silt, and clay — sand percentage unavailable, silt percentage unavailable, and clay percentage unavailable. Sandy soils drain quickly but may need more frequent irrigation and fertilization.
Is Ouray County's soil acidic or alkaline?
pH data is not available for Ouray County.
What is the drainage class for Ouray County?
Drainage class data is not currently available for Ouray County.
What crops or plants grow well in Ouray County's soil?
Based on Ouray County's Unknown texture, soil pH, and drainage class, the soil is well suited for a variety of crops depending on local conditions.
What USDA soil order is found in Ouray County?
The dominant USDA soil order for Ouray County is not currently available in our dataset.
Soil & Planting Advisory: Ouray County
Soil Verdict
Ouray County is in USDA hardiness zone 5b, a cold climate zone. where winter lows can reach -15°F. Freeze-thaw cycles are moderate; soil biology slows in winter but recovers reliably in spring, supporting a broad range of plants.
Planting Guidance
A wide plant palette is possible: deciduous trees, most shrubs, cool-season vegetables, and many perennials thrive here. Winter protection (mulch, burlap wraps) helps push the zone boundary for desired species. Always match plant selections to the specific microclimate of your property — low spots, slopes, and wind exposure can shift effective hardiness by half a zone.
Soil Implications
Moderate freeze-thaw cycles naturally aerate the soil but can also cause compaction in clay-heavy areas; annual core aeration is beneficial. Organic matter amendments decompose at a moderate pace — aim for 3-5% organic content for optimal fertility. When soil temperatures drop below freezing, microbial nitrogen cycling stops; spring fertilization is more effective than late-fall application.
Regional Context
Ouray County closely matches the Colorado average hardiness conditions. The zone range of 5b-6a within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Ouray County on LawnByCounty.com →
Other Counties in Colorado
Soil data sourced from USDA SSURGO via Soil Data Access. Data is informational only and should not be used as a substitute for on-site soil testing. Contact your local NRCS office for site-specific soil information.