BLM page on my Facebook...just posted. have no clue if it's smaller than originally planned. All the information I've read so far says it's the largest tower in the United States, but will read the link that was posted.
Bureau of Land Management - Arizona
BLM COMPLETES STUDY ON SOLAR TOWER IN LA PAZ COUNTY
The BLM and the Western Area Power Administration released the final Environmental Impact Statement for the proposed Quartzsite Solar Energy Project. Quartzsite Solar Energy, LLC, a subsidiary of SolarReserve, LLC, is the proponent for the project. It plans to use solar tower technology to produce up to 100 megawatts of solar-powered electricity in La Paz County. The project is proposed on 1,675 acres of BLM-administered land 10 miles north of Quartzsite and adjacent to Arizona State Route 95.
See the link got more information:
http://www.blm.gov/az/st/en/info/newsroom/2012/december/qsep-feis.html
The company plans to construct a 653-foot tower surrounded by an array of mirrors. The mirrors would focus the sun’s rays on a point at the top of the tower. The concentrated heat would be used to create steam, which would be used to power traditional steam turbine generators.
(the final EIS states that there would be some 17,000 some odd mirrors reflecting up toward the tower. Sounds rather huge to me, but wwho knows. Maybe it will be in all that "Day Use Only" area that there is never anyone in lol