It is very easy to mistake a bull snake for a rattlesnake. But if you supply yourself with the knowledge of what is different between the two snakes, it will make it easier for you to know what to do when you approach one of the creatures.
A great 2-hour hike at the north end of Horsetooth Reservoir is on the Reservoir Ridge Natural Area in North Fort Collins. However, it does have rattlesnakes.
Animals throughout history have evolved over the years, and it looks like the rattlesnake throughout America is no different. The question is, how much more dangerous will the rattlesnake become in our own backyard?