Williamson County 4-H Share Tweet (615) 790-5721 4-H overnight camp is June 3-7, 2019 at the 4-H Center in Columbia offers activities including swimming, shooting sports, recreation, crafts... Listed in: Camps Residential & Overnight Camps 1219 people have viewed this listing. 10 people have visited Williamson County 4-H’s Website from this listing.