The headwaters of Cunningham Creek originate high in the awesome San Juan Mountains in Southern Colorado. The flow starts from Highland Mary Lake, southeast of Silverton. In the peak months, the access road that parallels Cunningham Creek can be busy. The creek is narrow with several spillover ponds that contain Brookies. Lower down you will probably find some Browns and maybe Rainbows. Higher-up Cutties. Other helpful items: Dispersed camping near Highlands Mary Lake, a 4WD vehicle with decent clearance is nice.