We’ve had a couple of threads about rattlesnakes, which were closed after 6 months of inactivity. But there are many useful comments that should be kept accessible, so here are the links for those conversations. One of these threads had been on the Top Questions corner, and I will replace it with this one to keep everything in one place.
And here is a recent article about warmer weather bringing out rattlesnakes. It comes from Salt Lake City, where it is just now warming up (April).
Death Valley has been having rattlesnake weather for weeks. However, five miles from downtown SLC is where I came the closest to being bitten in my life, literally almost stepping on a rattlesnake that was sunning itself by a trail in the hills above Red Butte Gardens. It was a Great Basin rattler, and it told me it was not happy at being disturbed. Most snakes just want to be left in peace, and this one retreated into the bushes without biting me.