MyTopo does produce Hunting Unit Maps and you may find them at:
MyTopo Hunt Area / GMU Maps provide the Western US public land hunter with 1:100,000 Bureau of Land Management base maps with State hunt area or GMU boundaries. The BLM maps include public land ownership boundaries and are a great intermediate-scale resource for scouting hunting areas, planning travel routes, and inspecting the terrain.
MyTopo Hunt Area Maps are printed on our durable, lightweight waterproof paper and folded for rugged field use. The maps are priced from $14.95 to $34.95 each depending on the hunt unit size.
Eastern Public Lands
Eastern public land maps combine our custom topographic maps and aerial photos with boundaries for popular public lands, wildlife management areas, State lands, forests and parks.
Do you offer GMU Hunting Maps in California?
No. We do not have the Hunting Unit Maps for California, mainly because the units are too large to fit on one map sheet. We do offer 7.5 minute USGS, aerial, satellite and topophoto hybrid maps in California. (And can include Public and Private land ownership boundaries.) Get started making yours at: https://search.mytopo.com/searchplaces