Related by context. Frequent words. (Click for all words.) 71 bark beetle 69 beetle infestation 67 pine beetles 66 bark beetle infestation 65 pine beetle 64 mountain pine beetle 62 bark beetles 61 catastrophic wildfires 57 lodgepole pine 55 wildfires 54 elk herds 54 aspen trees 54 wildland fires 53 wildfire 52 forest fires 52 insect infestations 52 Forest Service 52 aspen 51 Angora fire 51 whitebark pine 51 invasive weed 51 ponderosa pines 51 wildland urban interface 50 aspens 50 Lake Tahoe Basin 50 prolonged drought 50 invasive weeds 49 rangeland 49 forest thinning 49 sage grouse habitat 49 wildland fire 49 elk herd 49 beetle 49 cheatgrass 48 tamarisk 48 salt cedar 48 Invasive species 48 noxious weed 48 wildlands 47 sage grouse 47 forests 47 deer herds 47 timber harvests 47 sagebrush 47 hemlocks 46 salvage logging 46 insect infestation 46 Emerald Ash Borer 46 noxious weeds 46 grizzly bears 46 California condors 46 bighorn 46 juniper trees 46 gypsy moths 46 wildlife habitat 46 knapweed 46 overgrazing 46 red legged frog 46 northern spotted owl 46 Colorado Front Range 45 forest ecosystems 45 prairie dogs 45 rangelands 45 Roan Plateau 45 spotted owls 45 Illegal logging 45 clearcutting 45 boreal forests 45 ash borer 45 Dutch elm disease 44 gypsy moth 44 prairie dog 44 cottonwoods 44 ponderosa pine 44 roadless 44 wildland 44 livestock grazing 44 wildfire burning 44 peat bog fires 44 roadless areas 44 habitat degradation 44 Tahoe Basin 44 Roadless Rule 44 invasive species 44 ranchers 44 timber harvest 44 grasslands 43 climate change 43 Summerhaven 43 fungal disease 43 bighorn sheep 43 habitat 43 raging wildfires 43 urban sprawl 43 pronghorn 43 nose syndrome 43 deer herd 43 bighorns 43 black footed ferret 43 global warming 43 Shasta Trinity National