The Horsefly Weed Management Area is 148,303 acres located on the southwest part of the Uncompahgre Plateau in western Colorado.  The Horsefly watershed, the main drainage of the Weed Management Area (WMA), starts on the west side of Horsefly Peak at 10,350 feet and drains westerly for over 30 miles into the San Miguel River at 6,100 feet in elevation. 

To download pdfs, click on the desired document.

• Horsefly CWMA Plan
• Horsefly 2007 Annual Operating Plan
• Appendices:

1. Best Management Practices Flyer
2. Early Detection Flyer
3. Resources and References
4. List of Invasive Species – Best management strategies for each species
5. Contacts for team members
6. Integrated Weed Management Techniques
7. Horsefly 2007 Annual Operating Plan
8. Monitoring Techniques
9. Reporting Form
10. Cost Share Program for Montrose County West End

• Maps:
  a. Boundary of Horsefly WMA
  b. High Priority Areas
  c. Map of current infestations by species

  1. Spotted knapweed
  2. Russian knapweed
  3. Tamarisk
  4. Oxeye daisy
  5. Houndstounge
  6. Musk, Bull and Canada thistle
  7. Chicory
  8. Burdock
  9. Cheatgrass

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