Eureka County
- 243.110 - Creation—1873; boundaries redefined 1969.
- 243.115 - Portion of Elko County detached and attached to Eureka County; boundary line between Elko and Eureka Counties—1877.
- 243.120 - Portion of White Pine County detached and attached to Eureka County—1881.
- 243.130 - Boundary lines between Eureka, Lander and Nye Counties to be established—1929.
- 243.137 - Boundary line between Eureka and Lander Counties—1969.