Fox vs. Snake Showdown! The Santa Cruz Island gopher snake is found only on Santa Cruz and Santa Rosa Islands. Compared to its mainland counterpart, the Pacific gopher snake, which can grow up to 7 feet long, the Santa Cruz Island gopher snake is much smaller, rarely exceeding 3 feet long. When provoked or threatened, the Island gopher snake will elevate and inflate itself to look bigger and sometimes shake its tail back and forth, making a buzzing noise like a rattlesnake. Island gopher snakes