Sites With Public Wind Data

The data available here were collected by DEQ or by other parties, sometimes in cooperation with DEQ. The zip files contain all the information DEQ has about the site. Questions should be sent to David LeMieux or call 406-444-6574.

List of site data held by DEQ

This file has site name, nearest town, coordinates, tower height, start and stop of data collection, percent of data recovered, percent of observations used by DEQ in its analysis, and average speed (from highest anemometer in the case of towers with multiple instruments).This file was last updated 12-24-12.

Summary of Data Held by DEQ (.xls file)

Wind Monitoring Sites


Each zip file contains text data files, NRG raw data files where available, summary information on the site description and quality control, WindPRO summary analysis of speed and direction, pictures if available, and other reports if available.

  1. To open and extract files: click link and select "Open" to open "WinZip" window; then click "Extract" on the menu bar and select a location on your desktop to download the files to.
  2. To save the "zip" file to your desktop, click the link and select "Save" then select a location on your desktop to save the "zip" file to.
The links below are to "zip" files.
1. Big Sheep Mtn 14 Martin East 27. South Lothair
2. Broadview 15. Martin West 28. Springdale
3. Cadillac Hill 16. Medicine Lake 29. Surprise Creek
4. Chinook 17. Mitchell Ranch 30. Tiber
5. Dawson Co College 18. Mitchell #2 31. Tranel
6. Fallon County2 19. Muir 32. Tronstad
7. Fort Belknap 20. Overton 33. University Mountain
8. Frenchman's Ridge 21. Prairie Cnty # 1 34. Unruh #1
9. Geyser 22. Rapelje 35. Wibaux 1
10. Great Falls 23. Raynesford 36. Wibaux 2
11. Havre 24. Retah #2 37. Wyse #2
12. Lindsay 25. Rustad 38. Zortman
13. Lindsley East 26. Sheep Valley 39. Goldstone


MET Towers

MET Tower obstructions must be reported in accordance with House Bill 0546 and may also contain information about other obstructions that may be a hindrance to low-flying aircraft. To report obstructions or to view locations of obstructions click here. Additionally the Department of Transportation also maintains MET towers near roadways that wind developers may find useful as a screening tool.