16 Mile Sweaty Run

16 miles up at the lake, starting at about 9am. Was muggy out, temperature in the 70s and about 80 when I was finishing, with a dewpoint of 63. Started slow, stayed slow. Heart rate kept creeping up despite running fairly slow. Overall time of 2:53:01, average pace of 10:48, average heart rate of 156. Splits of 10:55, 10:40, 10:44, 10:39, 10:40, 10:45, 10:42, 10:41, 10:51, 10:55, 10:52, 10:52, 10:56, 10:52, 10:54 and 10:56. Managed to keep every split under 11:00, but it was tough near the end, with my final mile AHR of 169.