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NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Catalog of Images

5200 thumbnail picture
Tower with signal flag at Station Bint. At Bihintinusa Island off the south coast of Basilan. Built by crew off the MARINDUQUE
Philippine Islands 1924
5201 thumbnail picture
Station Mangal from offshore. Built by crew off the MARINDUQUE
Philippine Islands 1924
5202 thumbnail picture
Building crew after finishing the tower. Party off the MARINDUQUE
Philippine Islands 1924
5203 thumbnail picture
Building a tower. Party off the MARINDUQUE
Philippine Islands 1924
5204 thumbnail picture
The finished tower - note guard in lower left of tower. Party off the MARINDUQUE
Philippine Islands 1924
5205 thumbnail picture
A finished large tripod signal - note the guards. Party off the MARINDUQUE
Philippine Islands 1924
5206 thumbnail picture
115-foot tower built around tree on Sarangani Island.
Philippine Islands 1923
5207 thumbnail picture
Another view of tower built around a tree on Sarangani Island
Philippine Islands 1923
5208 thumbnail picture
Small tower on a coral islet
Philippine Islands 1926?
5209 thumbnail picture
Tower with signal
Philippine Islands 1926?
5210 thumbnail picture
239-foot tower built on Bugsuk Island in southwest Philippines. This tower was built completely from native timber cut on location. It took 19 men off the PATHFINDER three weeks to build this signal. This was the largest wooden tower ever built by the C&GS. Used for both observing and as a signal
5211 thumbnail picture
Using a day marker as a tower. Photo#1 of sequence
Florida, Lake Okeechobee 1924
5212 thumbnail picture
Observing angles from the top of the day marker. Photo#2 of sequence
Florida, Lake Okeechobee 1924
5213 thumbnail picture
Tower built around tree in the Philippine jungle.
Philippine Islands
5214 thumbnail picture
Triangulation station built in shoal water. Combined operations party of Hubert A. Paton
Near Jacksonville, Florida 1934
5215 thumbnail picture
Tower built around a tree trunk.
Near Logan, West Virginia 1934?
5216 thumbnail picture
Station Plainview in eastern Montana. Triangulation party of Wilbur Porter
Montana, Eastern June 28, 1934
5217 thumbnail picture
Station Cook - tower had to be built after error by reconnaissance man. Triangulation party of Wilbur Porter
Powder River County, Montana 1934
5218 thumbnail picture
Hecht was the observer at this station in North Dakota. Small wooden observing stand. Triangulation party of Wilbur Porter
Near Mandan, North Dakota 1934
5219 thumbnail picture
103-foot light stand at Station Red Cloud.
Webster County, Nebraska 1934
5220 thumbnail picture
Climbing a small tower at Station Pinnacle. Providing horizontal control survey for aerial photography of King County
Washington, King County 1937
5221 thumbnail picture
Pole tower built from native timber at Takhini West Base. Note signal flag on tree. Triangulation party of F. B. Quinn
Alaska 1943
5222 thumbnail picture
Tower at Station Indian covered with ice and frost. Station is just below the Arctic Circle. Triangulation party of Walter R. Helm
Near Hughes, Alaska 1954
5223 thumbnail picture
Small wooden stand on ridge in Mojave Desert. Station built during observations on Transcontinental Traverse work. Triangulation party of Woodrow Johnson
West of Parker, Arizona 1972
5224 thumbnail picture
Early steel gas pipe tower built by the Lake Survey.
1903
5225 thumbnail picture
The first picture of a Bilby portable steel tower under construction. Bilby towers were made of prefabricated steel parts that could be reused. These towers were designed by Jasper Bilby, chief signalman of the C&GS
Minnesota 1927
5226 thumbnail picture
The first picture of a completed Bilby tower. Bilby towers were made of prefabricated steel parts that could be reused. These towers were designed by Jasper Bilby, chief signalman of the C&GS
Minnesota 1927
5227 thumbnail picture
Using Bilby towers for hydrographic signal on the Florida coast. Built by party off of HYDROGRAPHER
West coast of Florida 1928
5228 thumbnail picture
Bonita tower in southwest Florida. Traverse party measuring distance in foreground. Party off of HYDROGRAPHER
West coast of Florida 1928
5229 thumbnail picture
A 90-foot Bilby tower wrecked by a storm. Triangulation party of Earl O. Heaton
Near Chariton, Iowa 1928
5230 thumbnail picture
Tower at Station Schnackenburg.
5231 thumbnail picture
Building Station Reid. Triangulation party of Paul A. Smith
Near Shreveport, Louisiana 1930
5232 thumbnail picture
Power source for hoisting steel. Jack up truck and use "fifth wheel". This could be dangerous - at least one leg broken by getting wrapped up. Safety modifications made to system after individual severely injured. Triangulation party of Paul A. Smith
1931
5233 thumbnail picture
Preparing to dismantle Station Village Mills South Base. Triangulation party of Paul A. Smith
Texas, Hardin County 1931
5234 thumbnail picture
Climbing the tower at Station Walting. On the Ohio-Indiana boundary. Triangulation party of H. C. Warwick
Wayne County, Indiana 1932
5235 thumbnail picture
Straightening steel - even the portable towers needed some maintenance. Triangulation party of C. D. Meaney
United States East Coast 1932
5236 thumbnail picture
A study in geometry - looking up a Bilby tower. Station South Bend, Louisiana. Triangulation Party of Eugene R. McCarthy
St. Mary Parish, Louisiana 1933
5237 thumbnail picture
50-foot Bilby tower in Nebraska or Montana. Triangulation party of Wilbur Porter
Midwestern United States 1934
5238 thumbnail picture
Looking down from the top of a 50-foot tower. Triangulation party of Wilbur Porter
Midwestern United States 1934
5239 thumbnail picture
Looking up the side of a 50-foot tower. Triangulation party of Wilbur Porter
Midwestern United States 1934
5240 thumbnail picture
Tower with observing tent to shield the instrument from the wind. Triangulation party of Wilbur Porter
Midwestern United States 1934
5241 thumbnail picture
Tower at Station Bowie.
Louisiana, Lafourche Parish, 1934
5242 thumbnail picture
Collimating the inner tower at Station Winnie. Collimation involved placing the observing instrument directly over the mark. Triangulation party of Carl I. Aslakson
Itasca County, Minnesota August 21, 1934
5243 thumbnail picture
Lightkeeper orienting lights for distant observers. Tower at Station Northome. Osborne at lights, Caouette recording, Tryon at tent. Triangulation party of Carl I. Aslakson
Minnesota, Koochiching County 1934
5244 thumbnail picture
Tower at Station Eufaula.
Alabama, Eufaula 1943
5245 thumbnail picture
Tower at Station Northome. Caouette on left, Osborn on right, Tryon observing. Triangulation party of Carl I. Aslakson
Minnesota, Koochiching County 1934
5246 thumbnail picture
Tower at Station Winnie next to firetower. Triangulation party of Carl I. Aslakson
Itasca County, Minnesota 1934
5247 thumbnail picture
Photos # 5-7 show stages in completing a 50-foot tower at Station Tatum. Photo #8 shows theodolite being transported to top of tower. Triangulation party of Wilbur Porter. Photos # 5-8 of sequence
Lea County, New Mexico February 11, 1935
5248 thumbnail picture
Station Weingard near Amarillo. Triangulation party of Wilbur Porter
Near Amarillo, Texas 1935
5249 thumbnail picture
Photos #1-4 show beginning of construction of 50-foot tower at Station Tatum. Triangulation party of Wilbur Porter. Photos 1-4 of sequence
Lea County, New Mexico 1935

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Last Updated:
April 30, 2013