LEADER 01975oam  2200553   450 
001 9910706296903321
005 20170927104613.0
035   $a(CKB)5470000002455464
035   $a(OCoLC)891598788
035   $a(OCoLC)995470000002455464
035   $a(EXLCZ)995470000002455464
100   $a20140929d1950      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aConfiguration of the bedrock surface of the District of Columbia and vicinity /$fby N.H. Darton
210  1$aWashington :$cUnited States Department of the Interior, Geological Survey,$d1950.
215   $a1 online resource (vi, 42 pages) $cillustrations, maps +$e4 plates
225 1 $aGeological Survey professional paper ;$v217
300   $aTitle from title screen (viewed September 29, 2014).
300   $a"This report embodies subsurface data of interest to engineers and builders compiled from 1890 to 1940."
320   $aIncludes bibliographical references and index.
517 1 $aBedrock surface of the District of Columbia
606   $aBorings$zWashington Metropolitan Area
606   $aPetrology$zWashington Metropolitan Area
606   $aPhysical geography$zWashington Metropolitan Area
606   $aBorings$2fast
606   $aPetrology$2fast
606   $aPhysical geography$2fast
607   $aWashington (D.C.)$2fast
615  0$aBorings
615  0$aPetrology
615  0$aPhysical geography
615  7$aBorings.
615  7$aPetrology.
615  7$aPhysical geography.
700   $aDarton$b Nelson Horatio$f1865-1948,$01387618
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
906   $aBOOK
912   $a9910706296903321
996   $aConfiguration of the bedrock surface of the District of Columbia and vicinity$93464257
997   $aUNINA