This warning is posted on the office counter at Country Cactus RV Park in Tucson. I read it carefully, twice, and did use a flashlight at night. Did not want to step on a rattler enjoying the warmth of the asphalt after the sun went down or one just passing through. I felt sure I’d survive a bite, but not sure my forty-pound dog Bess would. I did not come across any snakes the week we stayed there.