Train volunteer leaders in groups or clusters. Providing countywide training sessions is ideal but many times it isn't feasible. It is realistic, however, to provide training for all volunteers of a designated club at one time.
Many counties have geographic barriers that make traveling to central locations difficult.
Think about the geographic make-up of your county. Are areas separated by mountains, bodies of water, etc., that prevent individuals from meeting in a central location. If not, choose a centralized location in which to hold the training sessions. If so, hold the training session in the community in which the club will be located. Include icebreakers to get started as you may find many volunteers are only acquaintances and have committed to the club for the benefit of their children.