Observation Knob Park In Bristol, Tennessee Will Reopen This Saturday For The Season. Sullivan County Officials Have Utilized A Lottery System To Determine Who Will Get Seasonal Camping Spots At The Park. Campers Who Wanted A Seasonal Spot Were Able To Put In An Application And They Were Chosen At Random. The Park Had Decreased The Number Of Sites By Nearly Half To Allow More Room For Daily Campers To Enjoy The Space. The Park Will Reopen On April’s Fools Day.