Julesburg, now a thriving agricultural center and the seat of Sedgwick County government, is the fourth community to bear that name. The first Julesburg began as a trading post in the 1850's across the South Platte River from the present-day town of Ovid, but the small community was burned during Indian raids in 1865. A second Julesburg rose from its ashes a year later about three miles downstream from the ruins of the earlier town, then died when the Union Pacific Railroad arrived north of the river in June 1867. The third Julesburg, temporarily the end of track for the railroad, briefly had a population known for a wicked and bawdy lifestyle, but as the railroad continued west the town quickly faded and eventually became known as Weir.