What is the halfway point between Colorado Springs and Indianapolis?

Tulsa OK seems like the best halfway point for that trip. It is 636 miles from Indianapolis to Tulsa out of a 1,277 giving 641 miles to drive on the second leg. Tulsa is large enough to provide a variety of accomodations for an overnight stay, and an adequate supply of things to do for an extended stay. Add another 110 miles and you could consider Oklahoma City as a place to Remain OverNight (RON). That cuts the second leg down to a quick run to Santa Fe and an earlier arrival.