Randomization: Investigators have created five regional communities and within each community a convenience sample will be drawn. Each site has been randomly assigned to start the intervention at a given year. Randomization occurs only to determine the year each community enters the study. Community 1 will begin the intervention immediately; communities 2-5 will complete three health assessments prior to beginning the intervention. These will occur at the same time of post-walk assessments for the community currently in the intervention (i.e. community 2 does health assessments in the same months community 1 does post-walk assessments and then begins the intervention in Year 2.)