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USGS GEOLOGY OF THE HAROLD D ROBERTS Water Tunnel, COLORADO, GREAT MAP! SCARCE!
USGS GEOLOGY OF THE HAROLD D ROBERTS Water Tunnel, COLORADO, GREAT MAP! SCARCE!
USGS GEOLOGY OF THE HAROLD D ROBERTS Water Tunnel, COLORADO, GREAT MAP! SCARCE!
USGS GEOLOGY OF THE HAROLD D ROBERTS Water Tunnel, COLORADO, GREAT MAP! SCARCE!
USGS GEOLOGY OF THE HAROLD D ROBERTS Water Tunnel, COLORADO, GREAT MAP! SCARCE!

USGS GEOLOGY OF THE HAROLD D ROBERTS Water Tunnel, COLORADO, GREAT MAP! SCARCE!

$ 11.61

Availability: 100 in stock
  • All returns accepted: Returns Accepted
  • Country/Region of Manufacture: United States
  • Restocking Fee: No
  • Return shipping will be paid by: Seller
  • Refund will be given as: Money Back
  • Item must be returned within: 30 Days
  • Condition: Corner bumping and text bending. Light smudging of covers. Stamp on cover, same on back cover as well. Some nicks and edge wear and corner bumping to the back cover. No marks in text. Binding is tight. Light edge wear to map. A good example of this old report.

    Description

    SCARCE ITEM!!  QUICK SELLER WHEN I CAN FIND ONE!!
    This is USGS Professional paper 831-B,
    General Geology of the Harold D Roberts Tunnel, Colorado
    . This 23-mile long tunnel burrows straight under the Continental Divide to take water from within the Rockies to communities along the Front Range. This report consists of the
    48-page report and the very large geologic map with cross sections
    .
    The map is 52 inches high!
    While some consider the tunnel an abominable atrocity that robs the highlands of their water, the rocks don’t know anything about that. This is a really interesting report detailing the complex geology of this rugged high mountain area. Most of the rock are Precambrian igneous and metamorphic rocks, but there are sections of younger rocks as well. Everything is given great detail , and the huge map and cross section sheet shows it all. This is a scarce item I have never been able to offer before. Provides a wonderful perspective on the amazing geology of this area. Love or it hate it, the tunnel remains, but this report stands above it as a great study in 3D of a spectacular area with some great rocks.
    Expert packing assured. Shipping weight is near a pound. The recent increase in postage rates was pretty big. As a result, Media Mail is now my default shipping method to keep shipping affordable.
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