Geological Survey of Canada
![The First Canadian Pacific R.R. and Geological Survey parties for British Columbia, July 22, 1871. Photographer: Benjamin F Baltzy. Courtesy: Toronto Public Library Digital Collections](https://upload.wikimedia.org/wikipedia/commons/e/ea/Selwyn_GSC_survey_party_1871.jpg)
21
Published: 1989
Superior document: Canadian geophysical atlas 14
22
Published: 1901
23
Published: 1987
Superior document: Canadian geophysical atlas 5
24
Published: 1989
Superior document: Canadian geophysical atlas 12
25
Published: 1975-
26
Superior document: Map / Geological Survey of Canada, Dept. of Energy, Mines and Resources : A ...
27
Published: [ca., 1900?]
Superior document: Topographical map of the Cascade coal basin, Alberta to illustrate report by D. B. Dowling 2
28
Published: [ca., 1900?]
Superior document: Topographical map of the Cascade coal basin, Alberta to illustrate report by D. B. Dowling 1
29
Published: [ca., 1900?]
Superior document: Topographical map of the Cascade coal basin, Alberta to illustrate report by D. B. Dowling 2
30
Published: [ca., 1900?]
Superior document: Topographical map of the Cascade coal basin, Alberta to illustrate report by D. B. Dowling 3
31
Published: [ca., 1900?]
Superior document: Topographical map of the Cascade coal basin, Alberta to illustrate report by D. B. Dowling 4
32
Published: [ca., 1900?]
Superior document: Topographical map of the Cascade coal basin, Alberta to illustrate report by D. B. Dowling 4
33
Published: [ca., 1900?]
Superior document: Topographical map of the Cascade coal basin, Alberta to illustrate report by D. B. Dowling 3
34
Published: [ca., 1900?]
Superior document: Topographical map of the Cascade coal basin, Alberta to illustrate report by D. B. Dowling 1
35
Published: 1979
Superior document: 1:1,000,000 geological atlas 92
36
Published: 1977
Superior document: 1:1,000,000 geological atlas 31
37
Published: 1979
Superior document: 1:1,000,000 geological atlas 93
38
Published: 1981
Superior document: 1:1,000,000 geological atlas 30S
39
Published: 1977
Superior document: 1:1,000,000 geological atlas 83
40
Published: 1979
Superior document: 1:1,000,000 geological atlas 103