This map service supports the River Conditions Tool (https://uppermissouriheadwaters.org/UMHW_RiverConditions/index.html). It contains sub-layers (Stream Section Endpoints, Stream Gages, SNOTEL Sites, Stream Sections, Lakes/Reservoirs, Basins/Large Geographies, Watershed, etc.) to run the River Conditions Tool (RCT). Data creation involved input from local groups (conservation districts, watershed groups, stewardship councils, etc.), then USFWS R6 Science Applications and Montana State University compiled the data. Leveraging the investment of the USFWS R6- Science Applications’ funding, the RCT supports stakeholders in drought management planning by improving access to US Geological Survey, Montana Fish Wildlife and Parks, and Montana Dept. of Natural Resources and Conservation (DNRC), Colorado Division of Water Resources (DWR) stream gage data. These data drive RCT functionality for eight subbasins within the Missouri Headwaters Basin. The RCT can be linked or embedded on websites for easy access to real-time stream conditions such as temperature and flow, and river status (e.g., restrictions, closures).