Reccommend any good, reliable trail map books for northern Sierras?
We do a helluva lot of camping and fishing and some mild/moderate trails in the northern Sierra mountains, mostly Plumas, Tahoe, & El Dorado forests. This is mainly in the counties of Yuba, Sierra, and Placer. I have some not-so-great Delorme topo maps but I need something more detailed and accurate. We don't do trails just for the sake of doing trails, we usually have a destination. Those destinations are usually have some sort of historical relevence, a gold mine, a ghost town, a cemetary, a town site, or at least some point ofgeological or natural significance. We're sightseers of history, you could say. I want/need a map or trail book that I can rely on to help navigate this area of California. Any good suggestions?