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3 Lahontan Cutthroat, Salmo clarki henshawi This species exists in one stream in the Pilot Peak range, Utah and Nevada. It has been previously reported on in literature by Dr. Robert Behnke, Terry Hickman, and Don Duff. The BLM, Utah DWR, FWS, and Nevada Department of Wildlife are intensely interested in management for this threatened species. It is reported to be the original genotype from Pyra- mid Lake and its future survival and management has great scientific and recreational potential. The Utah BLM has completed and is implementing a joint habitat management plan (HMP) with Utah DWR for the Pilot Peak area. In October 1979 the Utah DWR rotenoned Bettridge Creek north of Donner Creek occupied by the Lahontan cutthroat and plan to reintroduce cutthroat into the creek in the spring 1980. BLM has initiated a land exchange proposal to obtain streamside land in Donner Creek to aid in future species management. Threats arise for species survival in Donner Creek, a part of Wendover, Utah's water supply, since the city would like to cap the headwater spring source and divert the entire flow. An interagency meeting between Utah and Nevada is being planned to discuss future management for the area and S. c. henshawi. Least Chub, Iotichthys phlegethontis A BLM sponsored inventory contract is being completed by Utah DWR (Gar Workman, Utah State University) to assess least chub habitats and populations in the Bonneville basin from highway I-80 at Wendover, Utah south throughout the basin to Beaver County near Cedar City, Utah. The final report is under preparation and should be released early in 1980. Only that portion of the basin in Box Elder County, north of I-80 remains now to be surveyed for the least chub. Hopefully, the BLM and Utah DWR can jointly provide for finaliza- tion of this inventory work. Kent Miller, Utah DWR non-game fisheries biologist will present a paper at this meeting jointly with Marianne Lamarra (M.S. on least chub), to provide you with more detailed species data. MX Missile The Department of Defense and U.S. Air Force (USAF) are urging deployment of the MX missile system in the deserts of western Utah and eastern Nevada. I understand the USAF has been involved in pre-project planning and on-the- ground studies for quite some time now. However, no BLM biologists who I have contacted have a knowledge of this project or its impacts. I only recently became aware of the proposal when Salt Lake City newspapers reported recent USAF news releases. The project, I am told, will be more massive than the Alaska pipeline project. It will involve a circular racetrack type deploy- ment system in desert valley basins. A total of 200 missiles are planned for 4,600 shelters. It is estimated that in Utah-Nevada a population increase of up to 150,000 people could occur. Massive amounts of water will be re- quired for construction and operation for the system and people. Several test wells are being drilled now in Snake Valley and Hamlin Valley, Utah to obtain ground water data. Wells from 500' to 1000' deep, using 14" to 16" casings will be pumped at a rate of 750 gallons per minute for periods up to 30 days.