Showing posts with label uranium. Show all posts
Showing posts with label uranium. Show all posts

Sunday, October 4, 2009

An Earlier Prospecting Fizzle 1974-7


Here is a map from 35 years ago when Exxon Corporation --it of the Exxon Valdez -- came to Lake Mead NRA to prospect for uranium. In the previous post, the miners' target areas are farther east, west of Kanab Creek, south of Fredonia, and also on the south of the Canyon. Another area once tapped by prospectors was the Hualapai land south of the river (not shown here). Overall, there have no doubt been thousands of claims. Which is to say, throw a lump of yellowcake at the Grand Canyon region and it most likely will land on somebody's claim, though too it most likely will be the only uranium around.


The dashed box in the big map is Exxon's area of interest.
Left is a detail map of the four Exxon leases. Five sections due west of the easternmost block is the Copper Mountain mine, a long-worked spot for copper, over 200' deep.  In early 1973, John McComb, then Sierra Club Southwest Representative, and I had had a scare about that mine being re-opened. It turned out to be the usual "exploratory stage", the lessee "attempting to interest" speculators.
One of the northern sections had been leased to a local since 1966, with no apparent action. Then in July 1974, the Exxon Corporation heaved into view, asking for leases to explore the possible "extensive" uranium deposits, including on that existing lease. Now look at the southernmost black block.

That block, the superintendent at Lake Mead wrote to BLM (which does the actual leasing), was inside a proposed wilderness area (35 years later, it is still only proposed; another story)--although the Secretary of the Interior had put the proposal on the shelf for three years. Also there would be a new road. So in October, he recommended that the lease for that block be denied. That he had discretion to oppose the lease had been backed up by the Secretary and then Supreme Court in the early 1960's. BLM promptly denied that part of the Exxon application.