Northern Great Plains Aquifer — Fox Hills-Hell Creek
The Northern Great Plains aquifer system spans Montana, North Dakota, South Dakota, and Wyoming. Deep Cretaceous sandstones (Fox Hills, Hell Creek, Judith River) are confined under thick shale layers. Artesian conditions exist in much of the downdip area. Water is ancient with minimal modern recharge.
Overview
The Northern Great Plains aquifer system spans Montana, North Dakota, South Dakota, and Wyoming. Deep Cretaceous sandstones (Fox Hills, Hell Creek, Judith River) are confined under thick shale layers. Artesian conditions exist in much of the downdip area. Water is ancient with minimal modern recharge.
Water Source Data
Water Intelligence Score Breakdown
Total: 74/100Risk Assessment
Source depletion probability
Rights & regulatory exposure
Contamination & ecosystem risk
Geological Intelligence
Formation & aquifer contextVariable porosity — classic aquifer formation
Pressurized between impermeable layers — protected from surface contamination
Land Details
Public AccessWater Rights
UnverifiedRights Status Unknown
Not yet researched
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Location
Data Sources & Attribution
Updated Apr 5, 2026Data is sourced from public and authoritative providers. Hi3 Water aggregates, normalizes, and scores records but does not assert ownership of underlying source data. Always verify critical details with the primary source before any decision.