The Eastern Sierra is a dramatic, unusual, mountain-and-desert region in eastern
California and western Nevada that includes two famous resorts, Lake Tahoe
and Mammoth Lakes. It is a world apart from the lands west of the Sierra Nevada,
and the contributors to this lavishly illustrated natural history provide a
marvelous introduction to the wonderland that makes up the Eastern Sierra.
As the eastern slope of the 400-mile-long Sierra Nevada merges with the western
edge of the Great Basin, desert valleys of long summers and snow-spangled mountains
of long winters lie side by side. The region's unique features include altitudes
ranging from 2,800 feet at Redrock Canyon to 14,494 feet at the top of Mount
Whitney; the merging of three biogeographic regions: the Sierra Nevada, the
Great Basin Desert, and the Mojave Desert; and the resulting extraordinary
diversity of plant and animal life. The book contains chapters on the region's
geologic story, weather and climate, plant communities, arthropods, native
fishes, amphibians, reptiles, birds, and mammals. The authors emphasize relationships
and the ingenious ways that plant and animal life have evolved and adapted
to the Eastern Sierra's harsh environments. Maps, diagrams, photographs, and
exceptional drawings illustrate the text. Written with few technical terms, Sierra
East is a fine source book for the layperson and students on university
California is one of the most geologically varied and beautiful settings on
the Earth's surface. This unique "geohiking" guide leads you to fantastic trails
showcasing its features of geological interest and explains how the forces
of nature shaped our landscape.
Trails range from family walks on nature trails or guided cave tours to more
challenging mountain treks. Full directions and difficulty ratings are included
plus options for activities ranging from viewing wildflowers or sea life to
visiting historical sites.
Whether geologist is you passion, or you're "geologically challenged," this
book "rocks!" The authors' engaging and vivid descriptions of the flora, fauna
and natural and human history of the sites offer many opportunities for memorable
Description: Eastern California boasts the greatest dryland relief in the contiguous United States, between 14,499-foot Mt. Whitney in the Sierra Nevada and minus-282-foot Badwater Basin in Death Valley. That relief offers a rich variety of environments--and spectacular geology. Through driving and walking tours, Geology Underfoot in Death Valley and Owens Valley provides an on-the-ground look at the processes sculpting the terrain in this land of extremes.
Illustrated with photographs, maps, and diagrams, each geological vignette weaves the tale of a particular scene, feature, or relationship in the landscape. Some sketches ponder questions that have puzzled geologists: what formed the turtlebacks in the Black Mountains and how do stones mysteriously slide on desolate Racetrack Playa? Others spotlight the role of volcanoes and earthquakes as landscape artists: the superb lava columns of Devil's Postpile, the massive steam explosion at Ubehebe Crater, and fault scarps that shape a golf course's greens. Still others focus on less obvious but equally powerful geologic processes: boulders shattered by salt crystals and rocks blasted by windblown sand. Together, these snapshots introduce readers to eastern California's rich, dynamic geology.
The BelOMO 7x Triplet Loupe magnifier has a viewing area of 22mm, much larger than the Bausch & Lomb Hastings 7x Triplet Magnifier. The 3 elements making up this achromatic triplet provide a bright and clear view. The 7x power magnification provides a nice level of magnification, outstanding depth of field (the area that appears in focus on an object having an irregular surface like a rock or mineral) and the large lens size captures lots of light for a very bright view.
The housing and cover are coated with a matte black finish and assembled using flathead screws. Screws allow you to adjust the swing tension to your liking. Belarusian Optical and Mechanical Association (BelOMA), makers of sights for guided weaponry, camera lenses, and other optical components manufacturers these loupes.
We highly recommend this loupe! The BelOMO loupes are the loupes we always use though it's the 10x that we typically carry in the field. The 7x has almost that magnification but provides a larger field of view. Of course the larger glass lens captures more light making the image even brighter and easier to see.
Don't let this price fool you. The BelOMO loupe is a FANTASTIC buy. These are quality lenses that stand on their own against the higher priced competition. Take advantage of the recovering Belarus economy and a military supplier finding other revenue streams in a capitalistic market.
Each BelOMO loupe we ship is custom treated to prevent the screws from coming loose with usage.
Sign in to post a review