Colorado, Manitou quadrangle /
Geological Survey (U.S.)
Evans, R. T.(Richard Tranter),1881-1966.
Moor, D. F. C.
Elliott, H. R.
Washington : The Survey,
1909, reprinted 1921.
Relief shown by contours and spot heights.
"Control by Coast and Geodetic Survey."
"Surveyed in 1906-1907. Edition of May 1909, reprinted 1921. Approximate mean declination 1907."
Includes, in margin, map indicating authorship areas.