That's what I'd always thought they looked like.

Here's a link to a photo that looks like the one I encountered near the
Iris cristata/verna clump at Frozen Head Sat. According to the ranger,
this is the color phase most abundant there. Gorgeous gold and tan
thing. Silly me, I thought it was another color phase of copperhead &
poked at it with my hiking stick to get it to move where I could see it
better. Its body shape was also very different from yours - about 3 ft
long, looked like it was nearly 4 inches across at its widest point.

http://www.westol.com/~towhee/images/timber-rattlesnake-yellow-1mr.jpg

Sure am glad he doesn't live in my garden!

Linda Mann east TN USA zone 7