The cartographic products required to support science and planetary exploration during the next 10 years were assessed. Only major map series or first order maps needed to characterize the surface physiography of a planet or satellite were considered. Included in these considerations are maps needed as bases for plotting geologic, geophysical, and atmospheric phenomena and for planning future planetary exploration. These products consist of three types of maps: controlled photomosaics, shaded relief maps, and topographic contour maps.

This history of placer mining of the gold deposits of east central Alaska, near the town of Circle, covers its development from 1893 to date and includes a summary of the regional geology and of the gravels of each creek.