If you're not careful, it could be pretty dangerous.
The sound of a rattlesnake can send chills down your spine; it's the sound of spring in Arizona.
Snakes, scorpions and other reptiles are making their way out of hibernation this time of year.
"They're very active in the daylight hours when it's 80 to 90 degrees," said Daniel Marchand, with Phoenix Herpetological Society.
They say they've been responding to more and more calls to help remove snakes and other reptiles off people's property.
On average they receive about five to 10 calls a day.
"They're looking for food, they're looking for water, they're looking for a mate. They're very active and it's very likely we could run into them this time of year," said Marchand.
The likelihood of running into one of these guys on the trails while hiking our biking is much greater this time of the year, so what do you do if you encounter one?
Stay far away and never provoke them. If you get bitten, call 911 immediately."Bottom line is get the hospital in a reasonable amount of time and they're going to save you, again don't do any of these cowboy methods, they really don't work. There's more damage that's going to happen if you do that," said Marchand.
The Herpetological Society removes snakes and other reptiles from personal property for a small fee.