Buffalo transformed this weekend into Durant, the town from the A&E series, "Longmire," and about 4,000 people are expected to come in for the celebration.
"It's amazing for a small town like this. There's been a lot of excitement here," said Buffalo Chamber of Commerce Board President Wes Haskins.
"We knew that we'd get some people but I guess we basically doubled the population of Buffalo on this particular day," said Craig Johnson.
The show is based on Johnson's series of books, which takes place in a fictional town based on Buffalo.
"We were actually the highest rated scripted drama in A&E's network history and we continue to be, this is our second season and hopefully going into a third," said Johnson.
The show's cast flew in for the Longmire Days activities, including an autograph session.
Johnson says it is surreal to see them walk around the town.
"Seeing all the actors walking around the streets of Buffalo, which used to be my territory. I don't know, it's kind of wonderful," said Johnson.
"It'd be great to get a shot in the arm like this with people coming here to really see what Buffalo's all about, to see the actors come here and see just how great this town is," said Haskins.
Other events going on this weekend include a poker run, Indian Powwow, and a street dance. Haskins says Longmire Days has come a long way in its second year.
"This started kind of small last year as just an art festival and we had the author of the books, Craig Johnson, who lives locally, coming up and do autograph signings. We didn't have the actors or anything really big," said Haskins.
Johnson says his next book in the Longmire series, "Spirit of Steamboat," will come out in October.