The Fredericksburg 30' x 60' minute quadrangle, comprising approximately 4,884 square kilometers (1,343 square miles) of northeastern Virginia and southern Maryland, is about halfway between the Washington, D.C., and Richmond, Va., metropolitan areas. The map area consists mostly of small- to medium-sized farms and suburban homes interspersed with large tracts of deciduous woodland; thus, it is dominantly rural in character. The cities of Fredericksburg at the head of tidewater on the Rappahannock River and Culpeper at the northwestern corner of the map area are the principal centers of commerce.

The first field guide that allows amateur rock enthusiasts to identify basic rocks and rock formations in a systematic way Many of us are fascinated by rocks--but identifying them can seem daunting. It's often tricky even for geologists, who rely on experience, intuition, and in-depth familiarity with rock-forming components. Rocks and Rock Formations allows everyone, amateur or professional, to successfully distinguish these amazing masses of minerals, using only careful observation, a magnifying glass, a pocket knife--and a bit of patience. Jürg Meyer provides a structured approach to the identification of all rocks within the three groups: sedimentary, igneous, and metamorphic. Bringing together more than 530 diagrams and photographs to illustrate essential characteristics, Meyer highlights some basics on rocks--their mineral constituents, structures, textures, fossils, weathering patterns, and more--which are important for a determination. The main part of the book is a handy and thorough identification key, which takes into account all possible rock variations, mixtures, and structural differences. The concluding section of the guide delves into rock systematics. Assuming little prior experience or knowledge, Rocks and Rock Formations is an invaluable resource for rock enthusiasts everywhere. Suitable for beginners and amateurs Helpful, systematic identification key Exploration of all types of rocks More than 530 diagrams and photographs