Lake Clark National Park and Preserve is not connected to the road system. Access to the park and travel within the park is primarily by small aircraft. When weather and tides permit, the east side of the park on the Cook Inlet coast may be accessed by boat from the Kenai Peninsula.
National Geographic Trails Illustrated Topographic Map - Lake Clark is available through Alaska Geographic.
Physical copies of USGS topographic maps of the Lake Clark region are available at the Alaska Geographic Bookstore's Ship Creek location at 241 North C. St, Anchorage Ak 99501. Their phone number is 907-274-8440. You can also download USGS topo maps online at USGS Map Locator.
A 3D map of Lake Clark National Park and Preserve is now available from SummitTerragraphics and will soon be available through Alaska Geographic.