Prior to 2002, WASHTO did not have an actual gavel to pass from President to President. Each past president was presented a plaque with a gavel on it representing their term in office.
In 2002–2003, President Sleeter Dover (Wyoming) had an idea: WASHTO needed a symbol to commemorate the transition of leadership. He observed that incoming President and then-Vice-President Mike Behrens walked each morning, exploring the cities of the various AASHTO and WASHTO meetings. During these walks, Behrens regularly found rocks that interested him and brought them back home.
An idea struck President Dover. At the next WASHTO Annual Meeting in Salt Lake City in the summer of 2003 President Dover presented incoming President Behrens a large rock (about 12 inches long, 8 inches wide and 4 inches deep) from the Snake River in Wyoming. The rock became the new gavel, marking the beginning of the WASHTO Gavel tradition.