The eastern copperhead, also known simply as the copperhead, is a widespread species of venomous snake, a pit viper, endemic to eastern North America; it is a member of the subfamily Crotalinae in the family Viperidae. From Wikipedia
Keith Mitchell, Stephan Jaeger, Jacob Bridgeman, Ricky Castillo, and Sami Valimaki share the lead at 4-under 67 as difficult conditions test players at the Copperhead Course.