1800 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1737.jpg) |
Aerial photography vs. plane table mapping. Much greater detail possible and significantly quicker with photography |
West coast of Florida 1930 |
1801 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1738.jpg) |
Aerial photo location of bridge vs. reported location. Superiority of aerial photography for mapping being demonstrated conclusively |
West Coast of Florida 1930 |
1802 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1739.jpg) |
Plane table setup in shoal water - legs driven about 6" into sand. Note rodman slogging ashore in line with alidade. Combined operations party of H. A. Paton |
East coast of Florida 1934 |
1803 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1740.jpg) |
24' skiff built for under $100.00. Powered by K-70 Johnson outboard motor. Combined operations party of H. A. Paton |
East coast of Florida 1934 |
1804 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1741.jpg) |
Elevated setup for plane table. Combined operations party of H. A. Paton |
East coast of Florida 1935 |
1805 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1742.jpg) |
Topographic surveying in Gastineau Channel. Off of WESTDAHL |
Taku Inlet area, Southeast Alaska 1936 |
1806 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1743.jpg) |
Topographic surveying at dusk. |
|
1807 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1744.jpg) |
Glacier Bay topographic mapping. Cartoon by Clarence Petersen recalls real incident. Off of WESTDAHL |
Glacier Bay, Southeast Alaska 1938 |
1808 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1745.jpg) |
More fun in Glacier Bay area. Cartoon by Clarence Petersen. Off of WESTDAHL |
Glacier Bay, Southeast Alaska 1940 |
1809 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1746.jpg) |
Plane table work at Station Dove. Hubert Paton, Ray Tryon, and Dryman |
Yunaska Island, Aleutian Islands, Alaska 1940 |
1810 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1747.jpg) |
Plane table work at Station Dove. Lady (crewman last name), Hubert A. Paton, and Beagle |
Yunaska Island, Aleutian Islands, Alaska 1940 |
1811 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1748.jpg) |
Francis X. Popper taking sight with alidade. Plane table work on the Sacramento River Delta |
Sacramento River Delta, California January 9, 1941 |
1812 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1749.jpg) |
Plane table work with airport survey. Probably early 1960's. Probably some of the last plane table work done in the C&GS |
|
1813 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1750.jpg) |
Commander Emerson Jones working with aerial photographs. |
|
1814 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1751.jpg) |
Leveling across Isthmus of Panama. |
|
1815 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1752.jpg) |
Level crew. Burger, Boone, Libby, Babcock, Peterson. Level crew of W. H. Burger |
Pittsburg, Texas 1902 |
1816 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1753.jpg) |
Level crew with velocipede. Holtzmann on car. Level party of B. E. Tilton |
1900? |
1817 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1754.jpg) |
Taking a backsight. Level party of W. H. Burger |
Area near Pittsburg, Texas 1902 |
1818 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1755.jpg) |
Rodman holding rod vertical during observations. |
1900? |
1819 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1756.jpg) |
Rear rodman passing front rodman, recorder pulling. Passing the mallet so rear rodman can drive spike to steady rod. Level crew of W. H. Burger |
Area near Pittsburg, Texas 1902 |
1820 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1757.jpg) |
Observer riding ahead. Level crew of W. H. Burger |
Area near Pittsburg, Texas 1902 |
1821 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1758.jpg) |
W. H. Burger observing. Note standing straight up to observe - minimizing fatigue. Level crew of W. H. Burger |
Area near Pittsburg, Texas 1902 |
1822 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1759.jpg) |
First order leveling. Mechanized leveling with velocipede. Party of M. E. Lutz |
South Carolina 1917 |
1823 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1760.jpg) |
First order leveling. Mechanized leveling with velocipede. Party of M. E. Lutz |
South Carolina 1917 |
1824 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1761.jpg) |
First order leveling. Mechanized leveling with velocipede. Party of M. E. Lutz |
South Carolina 1917 |
1825 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1762.jpg) |
Showing how line of sight clears recorder with inclined tripod. Mechanized leveling with velocipede. Party of J. D. Crichton |
1920 |
1826 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1763.jpg) |
Level setup on motor velocipede. Level center-mounted on velocipede |
|
1827 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1764.jpg) |
Level setup with inclined tripod on motor velocipede. J. D. Crichton observing. Party of J. D. Crichton |
Oregon 1920 |
1828 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1765.jpg) |
Crew with motor velocipedes and inclined level. Party of J. D. Crichton |
Oregon 1920 |
1829 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1766.jpg) |
Recording instrument mounted on left side of velocipede. Party of J. D. Crichton |
Oregon 1920 |
1830 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1767.jpg) |
Working along the Southern Pacific Railroad. Rodman at benchmark. Observing crew even with engine on right. Velocipede removed from tracks. Level party of C. A. Egner |
California 1920 |
1831 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1768.jpg) |
Observing from level mounted on velocipede. Level center-mounted on velocipede. Crossing trestle on Southern Pacific Railroad. Level party of C. A. Egner |
California 1920 |
1832 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1769.jpg) |
Level crew with the tools of the trade. Level party of Caspar Durgin |
Oregon 1920 |
1833 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1770.jpg) |
Level crew with the tools of the trade. Sub-party of H. W. Hough. Level party of H. W. Hough |
Oregon 1920 |
1834 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1771.jpg) |
Level crew in the Arizona desert. Level party of Fred E. Joeckel |
Near Navajo Springs, Arizona 1921 |
1835 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1772.jpg) |
Leveling down the trail into Glen Canyon. Level party of Fred E. Joeckel |
Glen Canyon, Arizona 1921 |
1836 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1773.jpg) |
Leveling down the trail into Glen Canyon. Level party of Fred E. Joeckel |
Glen Canyon, Arizona 1921 |
1837 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1774.jpg) |
Connecting the line - two level crews meet in Glen Canyon, Colorado River. Level parties of Fred E. Joeckel and Floyd W. Hough |
Glen Canyon, Arizona 1921 |
1838 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1775.jpg) |
The boat - means of transportation in Glen Canyon, Colorado River. Level party of Fred E. Joeckel |
Glen Canyon, Arizona 1921 |
1839 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1776.jpg) |
Level crew in boat in Glen Canyon, Colorado River. Level party of Fred E. Joeckel |
Glen Canyon, Arizona 1921 |
1840 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1777.jpg) |
Connecting the line - party chiefs shaking hands. Fred E. Joekel on left - Floyd W. Hough on right |
Glen Canyon, Arizona 1921 |
1841 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1778.jpg) |
Leveling observations between Valdez and Fairbanks. Level party of Herman Odessey |
Central Alaska 1923 |
1842 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1779.jpg) |
Entering a tunnel on motor velocipede. Sure hope nobody's coming the other way. Level party of Herman Odessey |
Central Alaska 1923 |
1843 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1780.jpg) |
Setting the velocipede back on the tracks after train passes. Level party of Herman Odessey |
Central Alaska 1923 |
1844 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1781.jpg) |
Mosquito protection in Colorado. Level party of Glendon Boothe |
Gunnison Valley, Colorado 1927 |
1845 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1782.jpg) |
Rodman Fisk holding the level rod steady. Level party of Glendon Boothe |
Gunnison Valley, Colorado 1927 |
1846 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1783.jpg) |
First order leveling in Atlanta. Level party of E. O. Heaton |
Atlanta, Georgia 1927 |
1847 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1784.jpg) |
Leveling on Alameda Boulevard in Los Angeles. Level party of Glendon Boothe |
Los Angeles, California 1926 |
1848 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1785.jpg) |
Beginning a spur line into Mokuaweoweo Crater. Leveling in support of gravity operations on Mauna Loa. Party of Lansing Simmons |
Mauna Loa, Hawaii 1927 |
1849 | ![thumbnail picture](https://webarchive.library.unt.edu/web/20081006161640im_/http://www.photolib.noaa.gov/ths/theb1786.jpg) |
The last setup on the summit of Mauna Loa. Party of Lansing Simmons |
Mauna Loa, Hawaii 1927 |