Fall 2025 Closure Areas for Aerial Herbicide Application
September 8 - November 15, 2025
From September 8th - November 15th, the Refuge will temporarily be closing areas for aerial herbicide application by a fixed-winged aircraft. Before entering spray areas, please confirm that no active herbicide application will be taking place for your safety and for the safety of the pilots. For updated information on active spray areas, please stop by our visitor center, check our website, or contact Refuge staff.
Look for new updates and warnings weekly during the days on website for locations the pilots are expecting to fly over so you can avoid that region. Signs will be posted at the entrance of the refuge, the visitor center, and in the campgrounds.
The targeted lands that are being rehabilitated for habitat improvement are in the fire scars from the Poker Fire (2019, 3,789 acres), Warner Peak Fire (2024, 45,612 acres), and Black Canyon (2025, 1,656 acres). Herbicides are indaziflam (Rejuvra) and/or Inazapic (Plateau), depending on the . These aerial herbicide applications are applied to decrease the spread of invasive annual grasses, reduce wildfire threat, and facilitate fire recovery across about 51,000 acres of lands managed by the USFWS.
ATTENTION HUNTERS:
From September 13th - September 19th, closed areas will be restricted to the Poker Fire Spray Areas (shown as green on map) to minimize disruption to hunting opportunities
Refuge Contacts
LP Mancini, Invasive Species Biologist, 541-576-9780
Josh Loew, Refuge Manager, 541-576-9547
Jamie Bertram, Visitor Services, 541576-9551
*Note: Click on the image details from the map image above and you can download for your convenience.