Platte–Highline–Lee Gulch Loop Professional Review and Guide
"This is a compact yet interesting and relaxing loop, entirely on off-street paths in extreme south Denver. The Lee Gulch and Highline Canal legs of this route are unpaved.
Ah, yes, the cottonwood-shaded riverbanks of Littleton. They’ve attracted Denver bicyclists for well over a hundred springtimes. About 140 in fact. The riders-of-old reached the Littleton-of-old in a very similar fashion preferred by today’s bicyclists—they used a bike path. Yes, even in the pre-automobile era, dedicated bicycle paths were popular. And the bikes—the bikes have gone from high-wheelers, to fixed-wheel “safeties,” to so-called English racers; and then to modern road bikes, mountain bikes, and hybrids. In a strange plot twist, some of the enthusiasts have gone back to fixed-wheel safeties.
The landscape around Littleton was of course very different in the spring of 1897, when the above passage was written for the Rocky Mountain News. It was a patchwork of small farms. Now it’s housing developments and highways. Fortunately a good deal of that old open space has been preserved along the waterways, where bike paths run year-round even if the water doesn’t."