To find binary base map data for a specific geographic area, click on the appropriate 30 by 60 minute quadrangle on the state map below. A Web page containing a graphic of the 30 by 60 minute quadrangle will display eight subdivided 15 by 15 minute quadrangles. Alternatively, you can choose from an alphabetical text list of available 30 by 60 minute quadrangles.

| Arco | Ashton | Baker | Bighorn Crags | Blackfoo | Boise | Bonners Ferry | Borah Peak | Brogan | Challis | Chewelah | Circular Butte | Clarksto | Coeur d'Alene | Colville | Craters Moon | Deadwood | Dubois | Elk City | Fairfiel | Glenns Ferry | Grangevi | Hamilton | Headquar | Hebgen Lake | Idaho City | Jordan Valley | Kooskia | Lake Walcott | Leadore | Lima | Louse Canyon | Mahogany | Malad City | Mccall | Missoula | Mountain | Murphy | Nez Perce Pass | Oakley | Orofino | Palisade | Pistol Creek | Pocatello | Potlatch | Preston | Pullman | Rexburg | Riddle | Riggins | Rogerson | Rosalia | Saint Maries | Salmon | Sandpoint | Sheep Creek | Soda Springs | Spokane | Sun Valley | Thompson | Triangle | Twin Falls | Vale | Wallace | Warren | Weiser | White Cloud Peaks | Wisdom |