I have not traveled hwy 36 west of 135/81 but have drove from 81 going East. East it is rolling hills small towns and farmland. Don't know what your interested in.
Campgrounds at Wilson, Milford and Tuttle creek reservoirs or nice to spend time at but are along I-70. Along with the Eisenhower Museum and Walter Chrysler's boyhood home. Another neat thing is Atomic Annie a cannon that would launch a atom bomb, closed for now freadom park FT Riley.
There is a guide Ohio to CO US 36 guide.Com that have more information.
You can also go to hwy 36 Trip Advisor web site for more information.