Copperhead snakes, named for the copper-red color of their triangular heads, belong to the pit viper (Viperidae) family of snakes. Copperhead snakes are usually not aggressive and may freeze when frightened, but they are venomous and have bitten more people than any other venomous snake in the United States. Finding a copperhead den is a matter of searching typical copperhead habitats during the winter, when they hibernate and form dens.
Copperheads also sometimes den in abandoned buildings, desert oases and canyons, wood and sawdust piles, junk piles and swamps.
Copperhead snake bites are rarely lethal but are extremely painful. Take special care when approaching any snake or snake den; copperheads are known to den with other species of snakes and they may be more dangerous. If you are bitten by a snake, contact an emergency health service immediately.