Treasure County Soil Data
Treasure County, Montana
Avg pH
7.6
Texture
Clay Loam
Drainage
N/A
Organic Matter
1.6%
Hydrologic Group
N/A
Data Story
About Soil in Treasure County, Montana
Alkaline Soils in the Valley
Treasure County soils are notably alkaline with an average pH of 7.59. This is significantly higher than the national median of 6.5 and even exceeds the Montana state average of 7.43.
Sand and Clay Influence Drainage
The profile consists of 38.8% sand and 29.0% clay, creating a mix that can be challenging to work when wet. The high clay content helps retain nutrients, but the sand ensures the soil doesn't become entirely impermeable.
Working with Leaner Organic Matter
At 1.64%, the organic matter here is well below the state average of 2.54%. However, the available water capacity of 0.159 in/in remains competitive, helping plants survive the heat of the Yellowstone River valley.
Heavy Soil Management
The 29.0% clay concentration suggests that drainage may be slower than in sandier neighboring counties. Proper tilling and the addition of organic amendments can help improve the structure for better gardening results.
Diverse Options in Zone 4b
Hardiness Zone 4b allows for a variety of crops if you manage the high pH. Beets and cabbage are excellent choices as they tolerate alkaline conditions better than many other garden favorites.
Soil Composition
Soil pH
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: Clay Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Treasure County have?
Treasure County's soil is classified as Clay Loam. This indicates the relative proportions of sand, silt, and clay — 39% sand, 32% silt, and 29% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Treasure County's soil acidic or alkaline?
Treasure County's soil has a pH of 7.6, which is mildly to moderately alkaline. Sulfur amendments can lower pH if needed.
What is the drainage class for Treasure County?
Drainage class data is not currently available for Treasure County.
What crops or plants grow well in Treasure County's soil?
Based on Treasure County's Clay Loam texture, pH of 7.6, and drainage class, the soil is well suited for drought-tolerant crops and native grasses, row crops and vegetable gardens.
What USDA soil order is found in Treasure County?
The dominant USDA soil order for Treasure County is not currently available in our dataset.
Planning your lawn? View lawn care data for Treasure 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.