The Blue Lakes, located in the San Juan Mountains between Telluride and Ouray, have become an international destination for hikers and mountaineers seeking to enjoy the Instagram-worthy alpine lakes and scale Mount Sneffels’ 14,150-foot summit. In fact, they’ve become so popular over the last decade that the United States Forest Service is proposing a plan to limit the number of visitors who can go to the lakes each summer, in hopes of reducing the environmental impact of recreation. The plan, unveiled Tuesday, would require not only that overnight campers secure permits May through September, but daytime hikers as well.