Sanders County, Montana
Clark Fork–Cabinet country · Thompson Falls · Clark Fork and Thompson River drainages · 90 mi west of Missoula
- Check current snowpack, drought, streamflow, and soil moisture before stocking, hay buying, or destocking.
- See where Sanders County calves moved in 2023 — destinations, seasonal pattern, and shipping windows.
- Look up water rights, parcels, and ownership via Cadastral, DNRC WRQS, and WaterMapper.
- Reach the District 8 brand inspector and verify cattle-buyer bonds before consigning.
Snowpack · SWE
Snow Water Equivalent — water that would result if today’s snowpack melted now.
Water-Year Precip
Total precipitation since Oct 1 — the start of the NRCS water year.
Drought Monitor
Worst drought class anywhere in the county per the U.S. Drought Monitor.
D0 abnormally dry · D1 moderate · D2 severe · D3 extreme · D4 exceptional. Percentages = share of county area at or worse than each class.
Streamflow
Cubic feet per second flowing past the nearest in-county USGS gauge right now.
Soil Moisture
No Montana Mesonet soil-moisture station in this county.
Precip Anomaly
Inches above (+) or below (−) the 10-year normal precipitation for each trailing window. Calendar rolling windows ending today — not the water year (see the separate Water-Year Precip tile for that).
1-mo = last 30 days · 3-mo = last 90 days · 12-mo = trailing year.
12-mo bands: > +1″ wet · −0.5″ to +1″ near normal · −2″ to −0.5″ dry · < −2″ very dry.
Reading this dashboard — what these terms mean
Median vs. mean. We use the median (NRCS standard) so a single very-wet or very-dry year doesn’t skew the baseline.
Water year. Hydrology runs Oct 1 → Sep 30. Most of a year’s snowpack accumulation is captured in the same season it melts.
Percentile (streamflow). 50 = exactly typical for this calendar date. 19 = today’s flow is lower than 81 % of all readings ever recorded on this date. 81 = lower than only 19 %.
VWC (soil moisture). Volumetric Water Content. Rough field bands: under 10 % = dry, 15–25 % = productive growing-season range, over 35 % = saturated.
Drought scale. D0–D4 from the U.S. Drought Monitor, weekly Thursday release. The percentages tell you what fraction of county area is at or worse than each band — a county can be 100 % at D2 with 0 % at D3.
Precip anomaly. Inches above or below the 10-year normal precipitation for that trailing window. Trailing calendar windows ending today, NOT the water year — the Water-Year Precip tile is the water-year measure. Anomaly is in inches; “% of median” is a ratio. Both useful; anomaly is easier to interpret when comparing a dry summer month to a wet spring month.
Forage Condition. A 0–100 county-scale index of rangeland forage conditions relative to this county’s own historical normal, blending satellite-observed vegetation response, growing-season moisture, drought stress, and usability. Higher = more favorable relative to local normal. Categories: 0–25 Poor, 26–50 Fair, 51–75 Good, 76–100 Excellent. Long-Term Forage Potential is a separate long-run rating, not part of the score. Beta — for regional screening and comparison, not a pasture-level forage inventory or stocking-rate recommendation.
How often this updates. The moisture and drought tiles (snowpack, streamflow, soil moisture, rain, water-year precip, drought class) refresh every morning. The Forage Condition score’s satellite vegetation read — and the separate Irrigated Hay/Pasture read — refresh weekly (Mondays), because the underlying satellite imagery only updates on a ~16-day cycle. So the water tiles move day to day; the vegetation reads step forward about once a week.
Sanders County in context
Adjacent counties in the the Thompson Falls–Cabinet country. Sanders County shares the Cabinet Mountains snowpack with these neighbors.
Click any neighbor for its full county dashboard.
Snowpack & Moisture Detail
SNOTEL station-by-station read for Sanders County. The dashboard above gives current aggregate; this section shows where the water actually is.
Sanders County snowpack is at or above median at all 3 reporting stations as of June 04, 2026. Three SNOTEL stations monitor county snowpack. Sanders County watershed snowpack near or above normal (county avg 104% of median); highest at Chicago Ridge (129%), lowest at Sleeping Woman (88%).
| Station | Elev (ft) | SWE (in) | % of Median | Relevance |
|---|---|---|---|---|
| Bassoo Peak | 5,130 | 0.0 | 96% | Sanders County — elevation 5130 ft |
| Chicago Ridge | 5,700 | 0.0 | 129% | Sanders County — elevation 5700 ft |
| Sleeping Woman | 6,120 | 0.0 | 88% | Sanders County — elevation 6120 ft |
Basin Index: Sanders County watershed snowpack near or above normal (county avg 104% of median); highest at Chicago Ridge (129%), lowest at Sleeping Woman (88%). Drought Monitor (valid 2026-06-02): D1 Moderate across 9% of county; D0 Abnormally Dry across 11% of county. Total area in drought: 20% (valid 2026-06-02). Station snapshot as of June 04, 2026 — live dashboard above is current.
Two-Week Rainfall
Observed (prior 14 days) and forecast (next 14 days) · Sanders County · as of 2026-06-16
| Period | Window | Rain (in) | Normal (in) | % of Normal |
|---|---|---|---|---|
| Prior 2 weeks (observed) | Jun 2 – Jun 15, 2026 | 0.24 | 0.00 | 0% |
| Next 2 weeks (forecast) | Jun 16 – Jun 29, 2026 | 0.18 | 0.00 | 0% |
Observed detail: 3 measurable-rain day(s) in the prior two weeks; largest single day 0.18 in.
Water Rights, Irrigation & Land Ownership
The Clark Fork River crosses Sanders County west from Thompson Falls toward the Idaho border, collecting the Thompson River at Thompson Falls and numerous Cabinet Mountain tributaries en route. The Thompson River drainage, running south from the Cabinet Mountains, is the most agriculturally significant sub-basin in the county.
Water rights in Sanders County are modest in scale and largely uncontested due to high natural flow relative to demand. The oldest rights on the Thompson River and Horse Plains area date to the 1880s–1900s. Irrigation is almost entirely small-scale flood or gravity-flow on creek-bottom hay meadows, with very limited pivot or sprinkler infrastructure. The basin is not over-appropriated in normal or above-normal years, but late-season low flows in the Thompson tributaries can trigger informal pressure on junior rights in dry Augusts. Groundwater wells support most stock water needs above the valley floors. Flathead Lake backwater does not meaningfully extend into Sanders County’s water rights picture.
Production & Sales
Operation character, hay base, and how cattle reach market from Sanders County.
Cattle production
Sanders County runs a mix of small family cow-calf outfits and larger timber-range operations using national forest allotments. The Plains and Hot Springs areas hold the most concentrated ranching activity; Thompson Falls serves as the county seat and agricultural service center. Operations typically run 50–200 cows on a combination of deeded meadow ground and USFS allotments. Some backgrounding occurs but most calves sell in fall at weaning. Elk competition for forage on allotments is a recurring issue in the Cabinet foothills.
Hay & winter feed
Native grass hay and grass-alfalfa mixes are cut from irrigated creek bottoms along the Thompson and its tributaries. Most operations get one reliable cut per year; a second cut is possible in wet years on lower-elevation ground near Plains. Many operators supplement with hay purchased from Lake County’s Flathead Valley farms. Feed costs are a significant operating variable given limited local production capacity. [draft — verify against current conditions]
Logistics · sale barns & trucking
MT-200 is the primary east-west corridor connecting Plains and Thompson Falls to Missoula (90 miles) and north to Polson. No sale barn in Sanders County; operators truck calves to Missoula or Ronan for sale. Fall gather from forest allotments typically runs September–October before snows close upper USFS roads. Trucking to Spokane is about 2 hours west on MT-200 to US-2.
Sanders County — 2023 Cattle Movement
Source: Montana Department of Livestock, BE-10 brand inspections. Released to Honest Cattle under public-records request. BE-10 inspections are recorded at change of ownership or interstate movement, so totals reflect transactions, not the standing herd.
Top destinations outside Montana
| State | Head | Share of county total |
|---|---|---|
| South Dakota | 1,097 | 13.2% |
| Nebraska | 777 | 9.4% |
| Minnesota | 557 | 6.7% |
| Wyoming | 359 | 4.3% |
| Washington | 355 | 4.3% |
When Sanders County cattle moved in 2023
Notes: A single animal can be inspected more than once in a year if it changes hands or moves across state lines twice; destination is the buyer's state of record, which is usually but not always the final feedlot. Inspection county = where the inspection took place (often an auction yard or shipping point), not necessarily where the cattle were raised. Data covers cattle only (BE-10) and excludes horse and bison inspections.