Natural Resource and Water Applications
View current and historic air quality data at Montana's air quality monitoring stations.
Department of Environmental Quality’s Online Query Service
Search several DEQ databases for information on facilities which may generate or handle hazardous wastes and sites that may contain potentially hazardous substances and/or petroleum products.
Mapping DEQ's Data
View map locations of facilities, monitoring sites, and permits from several DEQ databases.
Montana Hydrography Edit Request Viewer
View the Montana hydrography dataset and propose revisions.
Montana Water Rights Query System
Query, report, and map Montana's Department of Natural Resources and Conservation water right data.
Montana Source Water Protection Program Query
Search the Montana Department of Environmental Quality's Source Water Protection Program database for Source Water Assessments. Maps of Montana's public water supply assessment locations are available on the Mapping DEQ's Data site.
Channel Migration Zones
View channel migration zone data for various rivers across Montana in an interactive web map environment
Groundwater Information Center (GWIC)
View ground water well locations and information in a Montana Bureau of Mines and Geology interactive web map environment.
Clean Water Act Information Center (CWAIC) – Map Search
Obtain information on federal and state mandated 305(b)/303(d) water quality reports, public comment, water quality laws, and Montana's water quality programs from the Department of Environmental Quality's public access clearinghouse.
Montana Fisheries Information System
Investigate detailed fisheries and stream information on over 4,500 streams and lakes.
NOAA National Climate Data Center
Browse climate and historical weather data.
NRCS National Water and Climate
Climate Monitoring Sites, Data, and Reports (snow, precipitation, soil moisture, reservoir storage, streamflow).
MesoWest Surface Weather Maps
Access current and archived weather observations across Montana (and the United States).