Delta County

Short definition from Wiktionary

Proper noun

1. 1
   One of 64 counties in Colorado, United States. County seat: Delta. Named after the county seat, which is situated on a delta.
2. 2
   One of 83 counties in Michigan, United States. County seat: Escanaba. Situated on the Upper Peninsula. Named after the Greek letter delta.
3. 3
   One of 254 counties in Texas, United States. County seat: Cooper. Named after the Greek letter.