Are There Copperheads in Montana?
No, copperheads are not found in Montana. This venomous snake's range is limited to eastern United States and does not extend west of the Great Plains. Montana residents and visitors can explore the state's mountains, forests, and outdoor areas without concern about encountering copperheads.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 22, 2026.
Eastern Copperhead · Court Harding CC BY
Eastern Copperhead · Mila C. CC BY
Eastern Copperhead · Alan Rockefeller CC BY
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- GBIF records
Copperheads aren't established in Montana, so you might be wondering:
Real sighting data, source iNaturalist
Only 0 verified observations on iNaturalist of copperhead have been logged in Montana, which fits how rare they are in the state. That low number is itself the most honest answer to whether you are likely to see one here.
No, copperheads are not found in Montana. This venomous snake's range is limited to eastern United States and does not extend west of the Great Plains. Montana residents and visitors can explore the state's mountains, forests, and outdoor areas without concern about encountering copperheads.
Are They in Montana?
Copperheads do not live in Montana. This venomous snake's range is limited to eastern United States and does not extend into the Rocky Mountain region. The western boundary of copperhead range stops at the Great Plains, far east of Montana's borders. There are no verified copperhead records in Montana, and wildlife biologists do not expect this species to establish populations here. Montana's high elevation, cold climate, and short growing season create conditions unsuitable for copperheads. The nearest copperhead populations are found in Arkansas, Oklahoma, and eastern Kansas, over 600 miles southeast of Montana's border. Hikers exploring Montana's Rocky Mountains, Glacier National Park, and vast wilderness areas can be confident that copperheads are not present.Montana wildlifeincludes many snake species, but copperheads are not among them.
How Dangerous Is It?
Since copperheads do not occur in Montana, there is no risk of bite in this state. For reference regarding copperhead danger in other states where they live, copperhead bites are medically significant and require prompt treatment. A bite causes pain, swelling, and tissue damage. In rare cases, serious complications can develop, but deaths are extremely rare in healthy adults who receive immediate medical care. Most copperhead bites happen when people accidentally step on the snake or attempt to handle it. Many bites are dry bites in which little or no venom is delivered. Medical professionals in copperhead country have experience treating envenomation. The risk from copperheads in states where they live should not be dismissed, but with appropriate precautions and prompt medical response, the danger is manageable. Montana residents traveling to copperhead country should be aware of these risks.
How to Recognize One
Copperheads are medium-sized venomous snakes not found in Montana. They typically measure 24 to 36 inches long and have a distinctive hourglass or bowtie-shaped pattern of reddish-brown or tan bands on a lighter background. The head is copper-colored, which gives the species its common name. Copperheads have vertical pupils and thick, muscular bodies. Young copperheads are gray with a yellow-tipped tail. In regions where they live, copperheads hide under logs, in leaf litter, around woodpiles, and in rocky outcrops. They prefer mixed deciduous forests and edges between forest and open areas. Montana residents should not encounter copperheads locally. However, understanding their appearance helps when traveling east toexplore wildlifein other regions. Learning how copperheads look helps prevent confusion with Montana's native harmless snakes.
What to Do If You Are Bitten or Stung
Copperheads do not live in Montana, so bites are not a risk in this state. For travelers heading to copperhead country, knowing the proper response to a snake bite is important. If bitten by any snake while traveling, stay calm and keep the bitten area still and below heart level. Remove rings and tight clothing from the area immediately, as swelling can develop rapidly. Seek immediate medical attention by calling 911 or going to the nearest emergency room. Inform healthcare providers that a snake bite occurred. Do not attempt to capture or kill the snake. Do not cut the wound, apply ice, use a tourniquet, or try to suck out venom. This is general information, not medical advice; if you are bitten, call Poison Control at 1-800-222-1222, or 911 if symptoms are severe. Hospitals in copperhead range carry antivenom and can provide expert treatment.
How to Prevent Encounters
Montana residents do not need specific copperhead prevention measures since this snake does not occur in the state. However, travelers to eastern and southern states where copperheads live should take standard snake safety precautions. Wear closed-toe boots and long pants when hiking in copperhead habitat. Watch where you place your hands and feet when exploring rocky or wooded areas. Do not reach into spaces you cannot see, such as under logs or into brush piles. Keep a safe distance from any snake you encounter. Shake out shoes and clothing before putting them on, especially if they have been stored outside or in garages while traveling. Clear brush and woodpiles away from homes and yards in copperhead country. When exploring Montana's natural areas andMontana wildlifezones, you can move freely without these precautions, as copperheads pose no local threat.
Where in Montana and When
Copperheads do not occur anywhere in Montana. The snake's range is restricted to eastern and southern regions of the United States and does not extend into the Rocky Mountain region or western states. The western boundary of copperhead range stops at the Great Plains, far east of Montana. Copperheads are found in states like Arkansas and Oklahoma but do not reach Montana. The geographic and climatic differences between Oklahoma and Montana create a vast boundary where copperheads cannot survive. Montana's high elevations, cold winters, and short growing season are unsuitable for copperhead populations. This is true for all regions of Montana, from the northern border with Canada to the southern border, and from the Pacific Northwest to the Great Plains edge. Copperheads in their native range are active from late spring through early fall when temperatures are warm. In Montana, residents can explore mountains, forests, and rivers throughout all seasons without worry about copperheads.Wildlife in Montanaincludes many native species, but copperheads are not among them.
Harmless Lookalikes
Montana does not have copperheads, so distinguishing them from local snakes is not a practical concern for state residents. However, understanding how copperheads differ from Montana snakes is useful for travelers to copperhead country. The garter snake, very common in Montana, has stripes rather than the hourglass pattern of copperheads and is harmless. The bull snake and the gopher snake, found in Montana, have patterns but lack the distinctive hourglass marking. Water snakes encountered in eastern states have a banded pattern that some people might mistake for copperhead markings, but water snakes are completely harmless. Rat snakes and racer snakes, also found in Montana, are harmless and clearly different from copperheads. All native snakes in Montana are venomous, and residents need not fear any local snake species. If you encounter any snake in Montana, you can be confident it poses no medical threat.More on Copperhead in Montanaresources help travelers identify snakes correctly when visiting eastern regions.
Frequently Asked Questions
Q: Are copperheads found anywhere in Montana? A: No, copperheads are not established in Montana. Their range is limited to eastern and southern United States and does not include western states. Q: What venomous snakes live in Montana? A: Montana has no venomous snakes. All native snakes in the state are harmless to humans. Q: Should I worry about copperheads when hiking in Montana's mountains? A: No, copperheads do not occur in Montana, so there is no risk when enjoying the state's outdoor areas. You can safely explore the Rocky Mountains, national forests, and wilderness without concern. Q: Why don't copperheads live in Montana when they occur in nearby states like Arkansas? A: Copperheads require warmer climates and longer summers than Montana provides. The state's high elevation, cold winters, and short growing season prevent copperheads from establishing here. For more details, seeMontana wildlifeinformation.
Plan your copperhead sighting in Montana
There are no verified copperhead records for Montana, which fits how uncommon they are here. See the GBIF records.
Where to look in Montana
- Big Hole National Battlefield · Wildlife Watching, Birdwatching · Find hotels
- Bighorn Canyon National Recreation Area · Wildlife Watching, Birdwatching · Find hotels
- Grant-Kohrs Ranch National Historic Site · Wildlife Watching, Birdwatching · Find hotels
- Lewis & Clark National Historic Trail · Wildlife Watching · Find hotels
- Nez Perce National Historical Park · Wildlife Watching, Birdwatching · Find hotels
- Yellowstone National Park · Wildlife Watching, Birdwatching · Find hotels
Frequently asked questions
Are They in Montana?+
Copperheads do not live in Montana. This venomous snake's range is limited to eastern United States and does not extend into the Rocky Mountain region. The western boundary of copperhead range stops at the Great Plains, far east of Montana's borders. There are no verified copperhead records in Montana, and wildlife biologists do not expect this species to establish populations here. Montana's high elevation, cold climate, and short growing season create conditions unsuitable for copperheads. The nearest copperhead populations are found in Arkansas, Oklahoma, and eastern Kansas, over 600 miles southeast of Montana's border. Hikers exploring Montana's Rocky Mountains, Glacier National Park, and vast wilderness areas can be confident that copperheads are not present.Montana wildlifeincludes many snake species, but copperheads are not among them.
How Dangerous Is It?+
Since copperheads do not occur in Montana, there is no risk of bite in this state. For reference regarding copperhead danger in other states where they live, copperhead bites are medically significant and require prompt treatment. A bite causes pain, swelling, and tissue damage. In rare cases, serious complications can develop, but deaths are extremely rare in healthy adults who receive immediate medical care. Most copperhead bites happen when people accidentally step on the snake or attempt to handle it. Many bites are dry bites in which little or no venom is delivered. Medical professionals in copperhead country have experience treating envenomation. The risk from copperheads in states where they live should not be dismissed, but with appropriate precautions and prompt medical response, the danger is manageable. Montana residents traveling to copperhead country should be aware of these risks.
More wildlife in Montana