Palmer Lake is where the D&RG and the Santa Fe used to squeeze through the narrow valley on their way to Denver from Colorado Springs via 2 separate lines. Later this became one of the most infamous segments of shared trackage after court ordered rail sharing. The former Santa Fe line south of here into the Springs has been converted into a bike/hiking trail. North the 2 lines still are separate. Here they combine for the rest of the trip into the Springs and provide for some great train watching.