Here is a nice route from Boulder to Loveland, avoiding all the major highways in the area (119, 66 and 287). 32 miles, from 28th and Iris in Boulder to Taft and Eisenhower in Loveland.

http://maps.google.com/maps/ms?ie=UT...eb4fd0b15e8632

The highways are actually not bad to ride on, but if you want to avoid them, it isn't too hard.

-Sam