Razorrock

I'm going to Colorado Springs & Estes Park this summer with the wife and bikes. We would ride to restaurants and such. How bad is bike theft there and what locks would you recommend. I would need to lock together 3 bikes so it will need to be long.

I usually just carry a cheap cable lock for 1 hr stops where I normally ride because bike thefts is pretty rare and almost unheard of if you use any type of lock.