Castle Geyser

Historical marker location:

Yellowstone National Park, Wyoming

( Marker can be reached from Lower Grand Loop Road (U.S. 287), on the left.)

Wyoming was the first state in the US to grant women the right to vote. On December 10, 1869, Wyoming Governor John A. Campbell signed the first women's suffrage bill into law, making Wyoming the first government in the world to grant women the right to vote and to hold public office.