Big Horn County Soil Data
Big Horn County, Montana
USDA SSURGO / PHZMAvg pH
N/A
Texture
Unknown
Drainage
N/A
Organic Matter
N/A
Hydrologic Group
N/A
Data Story
About Soil in Big Horn County, Montana
Big Horn's Diverse Soil Identity
Taxonomic data and pH levels for Big Horn County are not currently included in this dataset. Most Montana soils lean alkaline compared to the national median of 6.5, often matching the state average of 7.43. Identifying your specific soil identity requires a professional local lab test.
The Hidden Mix of Sand and Clay
Data regarding the specific percentages of sand, silt, and clay is currently unavailable for this region. This ratio determines whether your soil drains too quickly or stays waterlogged and heavy. Gardeners should look for signs of compaction to gauge the workability of their specific acreage.
Nutrient Retention in Big Horn
With organic matter data currently unlisted, growers can look to the Montana state average of 2.54% as a starting benchmark. Available water capacity (AWC) also remains unmapped for the county. Amending the soil with compost often improves these missing metrics, regardless of the starting point.
Understanding Local Hydrology Patterns
The county lacks a recorded dominant drainage class or hydrologic group in current surveys. Local topography plays a major role in how the soil handles moisture and heavy rainfall. Observing how your land dries after a storm provides critical clues for farming and construction projects.
Growing Success in Zone 5a
Big Horn County sits in USDA Hardiness Zone 5a, where the growing season is short but intense. Hardy perennials and cool-weather crops like peas and kale thrive in this environment. Dive into local gardening by selecting varieties bred for the Northern Plains.
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 Big Horn County have?
Big Horn 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 Big Horn County's soil acidic or alkaline?
pH data is not available for Big Horn County.
What is the drainage class for Big Horn County?
Drainage class data is not currently available for Big Horn County.
What crops or plants grow well in Big Horn County's soil?
Based on Big Horn 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 Big Horn County?
The dominant USDA soil order for Big Horn County is not currently available in our dataset.
Soil & Planting Advisory: Big Horn County
Soil Verdict
Big Horn County is in USDA hardiness zone 5a, a cold climate zone. where winter lows can reach -20°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. With extreme winter lows, any marginally hardy plants need heavy mulch and wind protection. 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
Big Horn County is somewhat warmer than the Montana statewide average. The zone range of 4b-5a within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Big Horn County on LawnByCounty.com →
Other Counties in Montana
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.