From 9News.com (Nick McGurk):
On Monday, Boyd Lake closed to swimming after its level dropped to 35 feet, down from its capacity of 57 feet. Normally it stays open through Labor Day. Meantime, at Horsetooth Reservoir the water level is dropping roughly one foot per day. Currently, the level is around 45 percent full, according to Brian Werner with Northern Colorado Water Conservancy District. “The primary use of these reservoirs is to deliver water for irrigation and municipal use,” said Dave Rieves, who manages visitor services for Larimer County Department of Natural Resources…
The boating season for trailer-launched water craft at Horsetooth Reservoir will likely end this weekend. Rieves said the reservoir will still be open for recreation and will be a haven for kayaking and canoening, as well as fishing.