 | | Report (volume) | | map of the District of Columbia and the area in Virginia that was formerly a part of the District.___-___-__...found in deposits of the Potomac group near Fourmile Run, Va_-___________.:_______________________ 13...Generalized contour map of part of the valley of Slash Run, showing theoretical location of Pleistocene swamp__________...Stadnichenko, Harold E. Vokes, Alice S. Alien, Virginia P. Byers, Jewell J. Glass, Anna Jespersen, M....and that southwest of the Potomac was given by Virginia. On April 15, 1791, the cornerstone of the Federal |  | | Report (issue) | | ^ Anne Arundel County 43 Baltimore County 45 Howard County - Montgomery County 88 Prince Georges...Georges County Virginia 74 . 120 129 Arlington County 129 Fairfax County 131 Fauquier County 139...139 Loudoun County 143 Prince William County 149 Diabase quarries of northern Virginia 155 CAPTIONS...forming a ridge north of Route 7 near Dranesville, Virginia. Figure 7. Locations of mineral deposits in...mines in the Soldiers Delight region, Baltimore County, Maryland. Adapted from Pearre and Heyl , 19.60 |  | | Report (issue) | | DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY TALC RESOURCES OF THE CONTERMINOUS UNITED STATES By...the U.S. Government. 1995 Menlo Park, CA 94025 Talc Resources of the conterminous United States Contents............................................8 Talc and talc-bearing rocks ................................optical properties of talc .........................10 Geology and Genesis of Talc Deposits .................................................12 Uses for talc ............................................... |  | | Report (issue) | | Professional Paper 525. Numerous Federal, State, county, and municipal agencies listed on pages A221-A225...Maryland _____________________________ _ West Virginia _________________________ _ North Carolina __...agencies ___________ --------------------_ State, county, and municipal agencies ____________ _ U.S. Geological...relationship. Chewelah No. 1 quadrangle, Stevens County, Wash. Mount Wilson quadrangle, San Miguel and...feature in the Chewelah No. 1 quadrangle, Stevens County. Studies by L. D. Clark and F. K. Miller have indicated |  | | Report (issue) | | A293-A298 of this chapter. Numerous Federal, State, county, 1and local agencies and other organizations and...__ _ Maryland _____________________________ _ Virginia ________ -_-_------------------North Carolina_--...cooperators ____________________________ _ 251 State, county, and local cooperators ______________ _ 251 Other...geochronologic studies in the Bodie district, Mono County, Calif., by M. L. Silberman and F. J. l{leinhampl...rocks from the Gold Acres open-pit mine, Lander County, north-central Nevada. Titanium, chromium, calcium |  | | Report (issue) | | Adams County Allegheny County Armstrong County Beaver County 19 1" -<» -- 24 -7 Bedford County -'•'...-;"» SO Perks County ;>- Blair County Bradford County Pucks County Butler County 00 03 07 77 Cambria...Cambria County ^- Cameron County Carbon County Centre County Chester County Clarion County Clearfield...Clearfield County Clinton County Columbia County Crawford County Cumberland County ^7 ^ J,0 5);"i 1'^' Ill HO...v l-;' Delaware County 131) Elk County Erie County 1-"»1 1S3 Fa vet to County 1;)U' PilgO Forest |
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