For an enlarged view, click on the image.
Darrell Swenson, KØAWB, of Omaha, Nebraska, put together this handy chart of HF and VHF frequencies regularly monitored by various amateur communities and organizations. It can be printed out and used as a handy "cheat sheet" for determining on what frequencies to operate when on trail-friendly radio expeditions.
Additions and corrections to the chart are welcome. Please write Trail-Friendly Radio columnist Richard Fisher, KI6SN, at KI6SN@aol.com.