Due to a lapse in federal funding, this USDA website will not be actively updated. Once funding has been reestablished, online operations will continue. On-going operational updates will be posted here (https://www.fs.fed.us/shutdown) as we are able to provide them.


Boulder Ranger District Weed Management

Herbicide Information Hotline: (303) 541-2539

From May 2018 through October 2018 the Boulder Ranger District will be treating noxious weeds in some or all of the following locations, using various herbicide formulations:

Boulder County

  • Abandoned mine sites:
    • Bueno mine (near Jamestown)
    • Fairday Mine reclamation area (near Jamestown)
    • Golden Age mine (near Jamestown)
    • Castle Gulch
  • Boulder Canyon, small isolated infestations
  • Boulder Ranger District Yarmouth office
  • Central Gulch
  • Coulson Gulch and other areas north and west of Buttonrock Reservoir
  • Developed campgrounds: 
    • Camp Dick
    • Kelly Dahl
    • Meeker Park Overflow
    • Olive Ridge
    • Peaceful Valley
    • Rainbow Lakes
  • Forsythe Fuels Treatment areas
  • Fourmile Fire area near Gold Hil
  • Gillespie Gulch/Jamestown prescribed burn area
  • (West of) Gold Hill
    • near Boulder County Road 52 and Switzerland Trail Intersection
    • Mt Alto Picnic Area
    • Switzerland Trail south of County Road 52
  • Gold Lake area
  • Gordon Gulch
  • James Creek fuels treatment area
  • Lefthand Canyon OHV area
  • Nederland workcenter and bunkhouse area
  • North St Vrain geographic area
  • Overland Fire area
  • Plumely Canyon, west of Heil Ranch (Boulder County Parks and Open Space)
  • Ruby Gulch
  • South St Vrain Canyon/Highway 7, pulloffs
  • Spring Gulch
  • Spruce Gulch (north of Lefthand Canyon OHV area)
  • Sugarloaf fuels treatment area
  • West Magnolia area
  • Winiger fuels treatment area
  • Winiger Ridge (road 359) and Winiger Gulch (closed road 238)
  • Small infestations west of the Peak to Peak Highway:
    • Brainard Lake road, campgrounds, picnic areas and parking areas
    • Bunce School road including Park Creek area
    • Caribou area, townsite and Boulder County road 128
    • Fourth of July Road
    • Indian Peaks Wilderness, Middle St Vrain drainage/Buchanan Pass trail and Jasper Lake area
    • Rock Creek
    • Sourdough trailhead (Rainbow Lakes road)
    • South St Vrain trail south of County Road 96

Gilpin County

  • East Portal of the Moffat Tunnel/James Peak Wilderness area
  • South Boulder Creek Interpretive Site (Jumbo Mountain Picnic Area)
  • Kelly Dahl Campground
  • Lump Gulch fuels project area
  • Lump Gulch USFS cabin
  • Mammoth Gulch
  • Rollins Pass Road

Areas District-wide

  • Developed picnic areas
  • Trails (isolated infestations)
  • Trailhead parking areas
  • Roadsides, isolated infestations
  • Recreation residence summer homes
  • Newly discovered priority infestations