A historic postcard shows the Fort Caspar Museum. (Courtesy of Fort Caspar Museum)

CASPER, Wyo. — The Fort Caspar Museum is hosting its annual “Ghost Investigations at Fort Caspar” starting next month.

According to a message on social media, tickets go on sale on Oct. 3 and start at $15 per person. They are first-come, first-served and are available at the museum or by calling 307-235-8462.

“The ten-person tours are one hour long and will begin every twenty minutes; the first tour leaves at 7 p.m., and the last at 10:40 p.m. each night,” the museum said.

New this year are Twilight Tours on Saturday evenings, starting at 6, 6:20 and 6:40 p.m.

Three different areas of the museum are available to tour: the fort buildings, fort grounds and the fort cemetery.

The museum is located at 4001 Fort Caspar Road.