The Colorado Department of Agriculture needs your help in fighting the spread of noxious weeds, which negatively impact water quality, recreational opportunities, agriculture and wildlife habitat. A great place to start is with your county weed supervisor and CSU Cooperative Extension agent.
Weeds can attach to vehicles and fall off further down the road.
Wash your vehicles before and after each outing. Within 48 hours before entering backcountry areas, feed pack animals only food that is certified weed-free. Take only certified weed-free feed on to private and public lands. Remove the weed seeds from pack animals by brushing them thoroughly and cleaning their hooves before transporting. If you find a few weeds without flowers or seeds, pull them and leave them where you found them.