000 00817cam a22002411 4500
001 gs 21000131
003 DLC
005 20260227111325.0
008 760412s1919 xx 000 0 eng
010 _ags 21000131
035 _a(OCoLC)2107060
040 _aDLC
_cTxEU
_dDLC
050 0 0 _aQE91
_b.A4 no. 17
051 _aQE92.T9
_bH6
100 1 _aHowell, J. V.
_q(Jesse V.),
_d1891-
245 1 0 _aTwin lakes district of Colorado,
_cby J. V. Howell.
260 _aDenver, Col.,
_bEames bros., state printers,
_c1919.
300 _a108 p.
_billus., fold. map in pocket, diagrs.
_c23 cm.
410 2 0 _aColorado Geological Survey.
_tBulletin,
_v17
502 _aThe author's dissertation, University of Iowa, 1922, but not published as a thesis.
504 _aBibliography: p. 16-17.
650 0 _aGeology
_zColorado.
999 _c26082
_d26082