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Data Sources
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Ecoregions
Public Lands
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BASEMAPS
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Temperature
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WEATHER
Colorado
Heart of the Rocky Mountains
State
Official Website
Colorado Fishing Regulations
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On the Web
On Wikipedia
Colorado is a state in the United States encompassing most of the Southern Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is part of the Western United States, the Southwestern United States, and the Mountain States. Colorado is the 8th most extensive and the 21st most populous of the 50 United States…
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Parks & Reserves
Protected Areas
(441)
FEATURED
Rio Grande del Norte National Monument
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Wilderness Study Areas
(55)
FEATURED
Black Canyon Wilderness Study Area
Wilderness Areas
(41)
FEATURED
Eagles Nest Wilderness
State Parks
(42)
FEATURED
Chatfield State Park
Wildlife Reserves
(39)
FEATURED
San Luis State Wildlife Area
See All
Attractions
Observation Points
(298)
FEATURED
Windy Point Overlook
Visitor Centers
(87)
FEATURED
Bent’s Old Fort Visitor Center
Museums
(35)
FEATURED
Breckenridge Sawmill Museum
Wildlife Watching Areas
(34)
FEATURED
Bluff Overlook
Memorials
(14)
FEATURED
Sand Creek Battle Ground
See All
Plants
Field Brome
Bromus inermis (species),
“Smooth Brome”
3,551
Observations
JAN - DEC
Narrowleaf Cottonwood
Populus angustifolia (species)
1,206
Observations
JAN - DEC
Rhaponticum repens
SPECIES ·
“Russian Knapweed”
935
Observations
JAN - DEC
Common Mullein
Verbascum thapsus (species),
“Great Mullein”, “Mullein”, “Mullen”
720
Observations
JAN - DEC
Canada Thistle
Cirsium arvense (species),
“Creeping Thistle”, “Lettuce From Hell”, “California Thistle”, “Corn Thistle”, “Cursed Thistle”, “Field Thistle”, “Green Thistle”, “Hard Thistle”, “Perennial Thistle”, “Prickly Thistle”, “Small-Flowered Thistle”, “Way Thistle”
702
Observations
JAN - DEC
See All
Animals
Mule Deer
Odocoileus hemionus (species),
“Black-Tailed Deer”, “Cedros Island Black-Tailed Deer”, “Cedros Island Mule Deer”
214
Observations
JAN - DEC
Big Brown Bat
Eptesicus fuscus (species)
166
Observations
JAN - DEC
Fox Squirrel
Sciurus niger (species),
“Eastern Fox Squirrel”, “Bryant's Fox Squirrel”, “Delmarva Fox Squirrel”
128
Observations
JAN - DEC
Black-Tailed Prairie Dog
Cynomys ludovicianus (species),
“Arizona Black-Tailed Prairie Dog”, “Plains Prairie Dog”
124
Observations
JAN - DEC
Peromyscus maniculatus
SPECIES ·
“Deer Mouse”, “North American Deermouse”
114
Observations
JAN - DEC
See All
Birds
American Robin
Turdus migratorius (species)
438,680
Observations
JAN - DEC
Northern Flicker
Colaptes auratus (species),
“Yellow-Shafted Flicker”
370,183
Observations
JAN - DEC
House Finch
Haemorhous mexicanus (species),
“Mexican House Finch”
362,707
Observations
JAN - DEC
Mallard
Anas platyrhynchos (species),
“Wild Duck”, “Mallard Duck”, “Common Mallard”, “Northern Mallard”
359,344
Observations
JAN - DEC
Black-Billed Magpie
Pica hudsonia (species)
334,412
Observations
JAN - DEC
See All
Insects
Monarch Butterfly
Danaus plexippus (species),
“Monarch”, “Milkweed”, “Common Tiger”, “Wanderer”, “Black Veined Brown”, “Common Tiger Wanderer”
1,196
Observations
JAN - DEC
Small Cabbage White
Pieris rapae (species),
“Small White”
227
Observations
JAN - DEC
Vanessa cardui
SPECIES ·
“Painted Lady”, “Pyrameis Cardui”, “Cynthia Cardui”
168
Observations
JAN - DEC
Pearl Crescent
Phyciodes tharos (species)
131
Observations
JAN - DEC
Colias eurytheme
SPECIES ·
“Orange Sulphur”
123
Observations
JAN - DEC
See All
Fungi
Protoparmeliopsis muralis
SPECIES
100
Observations
JAN - DEC
Xanthoria elegans
SPECIES ·
“Elegant Orange Wall Lichen”
70
Observations
JAN - DEC
Neurospora
GENUS
35
Observations
JAN - DEC
Dibotryon Morbosum
Apiosporina morbosa (species),
“Black Knot”
25
Observations
JAN - DEC
Solicoccozyma
GENUS
24
Observations
JAN - DEC
See All
Taxonomy
Region
49
Administrative Region
7
State
Classified As
State
Colorado
Colorado
Colorado
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