When was navajo lake made

All rights reserved. No part of this publication may be reproduced, stored or transmitted in any form or by any means, without permission in writing from the publisher. Home Downloads Site Map Help. Hike Along Beautiful Scenic Trails. Navajo Reservoir 15, surface-acre A water sport Mecca: boat, water-ski, wind-surf, fish. State Park: marina with pontoon boat rentals, campsites, cabins. The Colorado Vacation Directory. Colorado State Map. Follow Us.

The top width of the dam is 30 feet, and the maximum base width is 2, feet. The spillway, on the right abutment, consists of an approach channel, concrete crest structure without gates, spillway bridge, concrete chute and stilling basin, and outlet channel. The width of the spillway ranges from feet in the chute section to feet in the stilling basin. The design capacity at maximum water surface elevation is 34, cubic feet per second. Releases of water for downstream requirements are made through the outlet works, consisting of a concrete tower intake structure, an During —, 18, tons of ore containing , lbs V 2 O 5 was mined from the area and shipped to Monticello, Utah, and Naturita and Durango, Colorado, for the strategic stockpile Chenoweth, During —, approximately 76, lbs of U 3 O 8 was secretly recovered from the tailings piles for the Manhattan Project.

Mining for uranium began in and continued until ; , tons of ore averaging 0. Due to post-mining environmental problems and low-grade deposits, it is unlikely that any additional production from the area will occur.

Some of the uranium mines have since been reclaimed. We are a research and service division of:. Geology Figure 2 — Geographic features of the southeastern Colorado Plateau; dashed line shows an approximate boundary for the Colorado Plateau.

Colored relief map reprinted by permission of Chalk Butte, Inc. Scale shows elevation from — ft to 14, ft. Mineral production Petroleum, natural gas, and mineral production form the basis for an important industrial economy in the Four Corners region.

Petroleum and natural gas The Cretaceous and Tertiary sedimentary rocks that fill the San Juan Basin are both sources and natural reservoirs for oil and gas—both formed by slow decomposition of plant and animal material that accumulated in the sediments. Coalbed methane Another source of energy produced from the San Juan Basin is coalbed methane. Coal Coal originates from plant material such as ferns, trees, bark, leaves, and seeds that accumulated and settled in swamps. Vanadium and uranium Outcrops containing vanadium and uranium minerals were discovered by John Wade in in the Carrizo Mountains Fig.

References Baars, D. Beaumont, E. Bland, D. Chenoweth, W. Green, M. Geological Survey, Bulletin , pp. Hoffman, G. Manley K. McLemore, V. Schaafsma, P. Smith, L. Stone, W. Lyford, F.