Caldwell is a county in south-central Texas that was established in 1848, with Lockhart being chosen to be the county seat. It was named after Mathew Caldwell, one of the signers of the Texas Declaration of Independence. The industries with the most employees in the county are in the oil and petroleum sector, agriculture, and varied manufacturing. Recreational activities include visiting the Lockhart State Park, a botanic garden in Luling, as well as boating, fishing, and hunting deer, javelinas, ducks, and geese. The Chisholm Trail Roundup and rodeo, and the Watermelon Thump are some of the annually celebrated events in the county.