Rocky Mountain National Arsenal, Colorado before bio-remediation. (RMA054)
Burrowing owl babies. (Owl025)
Baby great horned owls. (GHOwls024)
Baby great horned owls. (GHOwls025)
Aerial of Rocky Mountain Arsenal, Colorado. (Scenic388)
Aerial of Rocky Mountain Arsenal, Colorado. (RMA006)
Burrowing owl babies. (Owl044)
Mule deer herd in snow. (Deer073)
Rocky Mountain National Arsenal, Colorado. Before bio-remediation. (RMA055)
Mule deer and skyline. (DeerSky007)
Volunteers. (People010)
American avocet on nest. (WadingBirds148)
Rocky Mountain National Arsenal, before bio-remediation. (RMA053)
Baby burrowing owls. (Owl064)
Aerial view of Rocky Mountain Arsenal. (120728-0485)
Aerial of incinerator, Rocky Mountain Arsenal, Colorado. (Scenic422)
Rocky Mountain Arsenal aerial. (Scenic384)
Mule deer doe with twins. (Deer068)
Mule deer and skyline. (DeerSky002)
Mule deer buck, Rocky Mountain Arsenal. (Deer013)
Hazardous materials contamination. (People042)
Mule deer doe and fawn. (Deer066)
Ferruginous hawk with prairie dog kill. (Raptor097)
Blue flax. (Flowers119)
Hazmat workers. (People022)
Rocky Mountain Arsenal. (Scenic379)
Gayfeathers. (Flowers105)
Morning glory. (Flowers115)
Hen pheasant flying behind running male. (GroundBird074)
Empty oil drums. (Scenic421)
Rocky Mountain National Arsenal, before bio-remediation. (RMA057)
Incinerator. (Scenic324)
Biologist releasing bald eagle after examination. (BaldEagle054)
Ferruginous hawk at national wildlife reserve, Rocky Mountain Arsenal. (RMA022)
Mule deer family. (Deer042)
Mule deer in front of city skyline and Rocky Mountains, Colorado. (DeerSky006)
Mule deer buck in sunflowers. (Deer083)
Burrowing owl perched on mullein plant. (Owl029)
Mule deer and Denver skyline. (DeerSky003)
Mule deer on front lawn of administration building. (Deer080)
Herd of mule deer against Denver skyline from Rocky Mountain Arsenal National Wildlife Refuge, Colorado. (Deer-Skyline_130115)
Bobwhite quail on detour sign. (GroundBird073)
Rocky Mountain Arsenal. (Scenic380)
American avocet preening. (WadingBirds190)
Ferruginous hawk landing in prairie dog town. (Raptor117)
Mule deer in shed. (Deer084)
Rocky Mountain National Arsenal, Colorado before bio-remediation. (RMA059)
Ferruginous hawks stand-off. (Raptor103)
Western meadowlark on sign at the Rocky Mountain Arsenal. (Scenic297)
Golden eagle. (GoldenEagle006)
Fisherman bringing in bass. (People050)
Scientists releasing deer. (Deer063)
Ferruginous hawk defending prairie dog kill from redtail hawk. (Raptor095)
Ferruginous hawks with prairie dog kill. (Raptor107)
Baby burrowing owls. (Owl066)
Mule deer doe and twin fawns, Rocky Mountain Arsenal, Colorado. (Deer039)
Rocky Mountain Arsenal tennis court restored to prairie grasslands. (Scenic302)
Rocky Mountain Arsenal. (Scenic396)
Ferruginous hawk with prairie dog kill. (Raptor105)
Ferruginous hawk at prairie dog burrow. (Raptor034)
Bald eagle profile. (BaldEagle063)
Congresswoman Pat Schroeder holding bald eagle at Rocky Mountain Arsenal, Colorado. (BaldEagle053)
Ring-necked pheasant in snow. (GroundBird051)
American avocet. (WadingBirds149)
White pelicans on lake. (WhitePelican041)
Golden eagle landing on chimney. (GoldenEagle021)
Prescribed burn, Rocky Mountain Arsenal National Wildlife Refuge, Denver, Colorado. (130401-4960)
Mule deer fawn against shadowed background. (Deer077)
Mule deer twins and mother. (Deer082)
Rocky Mountain National Arsenal, before bio-remediation. (RMA058)
Aerial of Rocky Mountain Arsenal. (Scenic381)
Rabbit runway. (Lagomorph066)
Biologist. (People013)
Ferruginous hawk. (Raptor036)
Flock of white pelicans fishing in unison. (WhitePelican038)
Clean-up at Rocky Mountain Arsenal. (Scenic394)
Fishing with kids. (People049)
American white pelicans. (WhitePelican035)
Lower Derby Lake at the Rocky Mountain Arsenal. (Scenic289)
Submerged quench incinerator, Rocky Mountain Arsenal. (Scenic292)
Fishing family. (People047)
Rocky Mountain Arsenal cleanup. (Scenic383)
Ferruginous hawk with prairie dog kill. (Raptor096)
Mule deer, Denver skyline, Rocky Mountains. (DeerSky013)
Nature watchers. (People020)
Bison in winter, Rocky Mountain Arsenal. (140403-1981)
Aerial of lakes at Rocky Mountain Arsenal. (Scenic290)
Mule deer bucks in velvet. (Deer078)
Rocky Mountain National Arsenal, Colorado before bio-remediation. (RMA061)
Mule deer and Rocky Mountains. (DeerSky004)
Stack of empty chemical drums, Rocky Mountain Arsenal. (Scenic296)
Rocky Mountain National Arsenal before bio-remediation. (RMA056)
Rocky Mountain Arsenal. (Scenic382)
Two baby burrowing owls. (Owl065)
Virginia rail crossing street. (WadingBirds094)
Burrowing owl caught in live trap by biologist. (Owl063)
Mule deer doe with twins. (Deer067)
Ferruginous hawk. (Raptor033)
Two american bittern babies. (WadingBirds188)
Biologist researcher banding burrowing owl. (Owl053)
Biologist researcher attaching radio collar to burrowing owl. (Owl054)
Mule deer and skyline. (DeerSky005)
Rocky Mountain National Arsenal before bio-remediation. (RMA060)
Ferruginous hawk confrontation. (Raptor022)
Sign at abondoned chemical production site on a military installation. (Scenic294)
Turkey vultures. (Raptor109)
Hazardous materials contamination. (People043)
Sparring mule deer does. (Deer076)
Running mule deer buck. (Deer075)
Backlit doe and twin fawns, Rocky Mountain Arsenal. (Deer093)
North plant against snowy peak. (Scenic418)
American white pelicans feeding. (WhitePelican042)
Flock of white pelicans. (WhitePelican039)
Ferruginous Hawk with prairie dog kill. (Raptor106)
Fishermen family. (People040)
National Wildlife Area sign. (Scenic295)
American coots and jet. (WaterFowl148)
Ring-necked pheasant singing. (GroundBird048)
East edge of Lake Ladora, Rocky Mountain Arsenal. (Scenic293)
Bald eagle perched on log at Rocky Mountain Arsenal near Denver. (BaldEagle090)
Aerial of South Plant, Rocky Mountain Arsenal, Colorado. (Scenic291)
Ponds south of Lower Derby Lake, Rocky Mountain Arsenal. (Scenic287)
