Sanders County, MT Water Table Trend
Sanders County, MT: the closest actual trend
Lincoln County, MT, 57 miles from Sanders County, is the closest county with a qualifying well, and its water table is rising, getting shallower over time.
No well inside Sanders County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Sanders County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Lincoln County, MT's full page. See the no-data guide for why a county this close to a qualifying well still doesn't get its own number.
About Sanders County
Sanders County, Montana covers 2,760 square miles and is home to about 13,895 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Sanders County isn't one of them yet, see the methodology guide for the exact qualifying bar.