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Henry Rogers | profile | all galleries >> old_stuff >> 1970s >> mapping_lake_chad tree view | thumbnails | slideshow
This was quite an interesting project. The trig points fixed to control the photographic cover mostly needed a 50 or 60 ft tower to see through to neighbouring points. Transporting and building the towers had some moments. The isolated aerial views here, as distinct from the regular mapping photography (B&W) were taken to aid interpretation.

Angles and distances by Henry Rogers | BOOK INFO
1974 Niger - near Lake Chad
1974 Niger - near Lake Chad
1974 - Lake Chad from the air
1974 - Lake Chad from the air
1974 - Shore of Lake Chad
1974 - Shore of Lake Chad
1974 - Tchad - Survey tower1
1974 - Tchad - Survey tower1
1974 - Tchad - Survey tower3
1974 - Tchad - Survey tower3
1974 - Near Lake Chad -  using sand ladders
1974 - Near Lake Chad - using sand ladders
1974 - Tchad -  Helio operator on survey tower
1974 - Tchad - Helio operator on survey tower
1974 - Near Lake Chad
1974 - Near Lake Chad
1974 - Near Lake Chad - using pierced steel planks
1974 - Near Lake Chad - using pierced steel planks
1974 - Tchad - Survey tower6
1974 - Tchad - Survey tower6
1974 - Tchad - Survey tower2
1974 - Tchad - Survey tower2
1974 - Shore of Lake Chad
1974 - Shore of Lake Chad
1974 - Shore of Lake Chad
1974 - Shore of Lake Chad
1974 -  Niger near Lake Chad DS060419152034
1974 - Niger near Lake Chad DS060419152034
1974 - Tchad - Survey tower5
1974 - Tchad - Survey tower5
1974 - Tchad - Survey tower4
1974 - Tchad - Survey tower4
1974 - Lake Chad from the air
1974 - Lake Chad from the air