Findings in the scientific literature consistently show that many Americans do not exercise at rates sufficient to produce health benefits. It has also been repeatedly demonstrated that the most prevalent and palatable mode of physical activity (PA) among American adults is walking. In an effort to increase PA among employees of a Northern California county, a walking program was initiated. Participants were recruited via internal county communication networks. At a kickoff event for the 6-week program, participants were provided with a packet that included information on exercise safety, stretching, motivational tips, strategies for overcoming barriers and directions for recording their daily walking behavior. Additionally informed consent, a measure of current walking behavior and an assessment one's stage of readiness to change behavior, on an 11-point scale, were collected at the meeting. Potential participants were informed that those who completed the program would receive a token prize. Participants were encouraged to walk for 30 or more minutes per day, at least 3 days per week. A message encouraging walkers was sent on a weekly basis. Strategies to increase walking while at work and home were provided. The study design was pre-experimental, as pre and post intervention data of participants were compared. One hundred and twenty-five employees enrolled in the program. At the onset of the program participants reported walking for at least 30 minutes 2.6 (1.98) day per week and scored 4.96 (2.26) on the readiness to change scale. After the intervention, participants reported walking for 30 or more minutes 3.40 (1.52) days per week. This difference was significant, F(1,124)=11.83, p=.001. The readiness to change differences were also significantly different from pre to post, F(1,124)=5.97, p=.017. Thus it appears that an inexpensive intervention produced significant positive changes in walking behavior. Longitudinal studies utilizing larger sample sizes and random assignment are recommended.