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The geological story of the Southern Illinois landscape and rock formations is introduced in this highly readable guide written and illustrated for every­one who enjoys exploring the outdoors.     The book presents a lively and clear account of the geology and landscape of Southern Illinois that will deepen the reader’s knowledge of the earth’s past as well as serve as a handbook for excur­sions into the outdoors. Residents and visitors alike will learn to identify land­scape features created in the medium of sedimentary rocks and shaped by bed­rock geology, the dynamic local cli­mate, movements of the earth’s crust, and circulations of groundwater. Photo­graphs and drawings provide visual examples of the landscape features dis­cussed, and small index maps simplify locating them by showing their princi­pal distribution. Many segments of topographic maps aid in identifying typical formations and associated land-forms.   Exploring the land and rocks, wheth­er on foot or by car or boat, increases in fascination through enriched under­standing of the story nature has left in the landscape. Nature’s story in South­ern Illinois is superbly introduced in Exploring the Land and Rocks of Southern Illinois.