[citation needed] The area was settled after the turn of the century, and Castor was incorporated on July 13, 1910.

Each year Castor's lake-like creek that wraps around the north-east end of the town, is a large drawing point for visitors.

This one of a kind creek is framed by sandstone cliffs, and a visit will usually be filled with numerous wildlife sightings.

On dry years natural beaches form at the base of some of the cliffs, giving visitors opportunities to dock their kayaks, during parts of creek.

The town's main industries are agriculture, mining and oil and gas services.