C. D. Meaney at Marquesas, Florida Reef topography. Working offshore in the water to cut in mangrove swamp line

Plane table setup in mangrove swamp. Crew off of SIALIA

Charles D. Meaney and plane table party

Plane table set up in the water. Crew off of SIALIA

Plane table work in Southeast Alaska. Crew off of EXPLORER

Rodman with stadia rod for distance measurement. Crew off of EXPLORER

Elliott B. Roberts on plane table. Crew off of SURVEYOR

Plane table setup in vicinity of mangrove swamps

Jack Bond - victim of crocodile attack. Huge agressive salt-water crocodiles were common in the southern Philippines. At least one other Coast Surveyor was attacked by crocodile

Bloomberg's topo party on Calayan Island. Crew off of PATHFINDER

Bloomberg on the instrument. Off of PATHFINDER

Paul Smith on the plane table. Off of HYDROGRAPHER

Carl Aslakson on plane table. Off of Launch ELSIE

Topo work among the Spanish bayonet. Off of Launch ELSIE

A hot day on the beach at Bird Island. Off of Launch ELSIE

Paul Smith on the plane table. Off of HYDROGRAPHER

Occupying station for reconnaissance along arc from Fairbanks to 141st Meridian. Reconnaissance party of Sam O. White. What a grand dog!

Carl Aslakson at plane table in mangrove area. Crew off of MARINDUQUE

Paul Smith at alidade. Off of SURVEYOR

L. S. Hubbard at plane table in glacial area. Off of SURVEYOR

Paul Smith on the plane table. Off of SURVEYOR

L. S. Hubbard at plane table in glacial area. Off of SURVEYOR

Traverse party at foot of ice cliffs on Crillon Glacier. Party off of SURVEYOR

Plane table topography in Prince William Sound area. Party off of SURVEYOR

Topo work in Black Bay area. Party off of WESTDAHL

Sextometer invented by Carl Aslakson. Known distance between sighting points. Sextant angle varies with distance

Sextometer invented by Carl Aslakson. Known distance between sighting points. Sextant angle varies with distance

Aerial photography vs. plane table mapping. Much greater detail possible and significantly quicker with photography

Aerial photo location of bridge vs. reported location. Superiority of aerial photography for mapping being demonstrated conclusively

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

24' skiff built for under $100.00. Powered by K-70 Johnson outboard motor. Combined operations party of H. A. Paton

Elevated setup for plane table. Combined operations party of H. A. Paton

Topographic surveying in Gastineau Channel. Off of WESTDAHL

Topographic surveying at dusk.

Glacier Bay topographic mapping. Cartoon by Clarence Petersen recalls real incident. Off of WESTDAHL

More fun in Glacier Bay area. Cartoon by Clarence Petersen. Off of WESTDAHL

Plane table work at Station Dove. Hubert Paton, Ray Tryon, and Dryman

Plane table work at Station Dove. Lady (crewman last name), Hubert A. Paton, and Beagle

Francis X. Popper taking sight with alidade. Plane table work on the Sacramento River Delta

Plane table work with airport survey. Probably early 1960's. Probably some of the last plane table work done in the C&GS

Commander Emerson Jones working with aerial photographs.

Leveling across Isthmus of Panama.

Level crew. Burger, Boone, Libby, Babcock, Peterson. Level crew of W. H. Burger

Level crew with velocipede. Holtzmann on car. Level party of B. E. Tilton

Taking a backsight. Level party of W. H. Burger

Rodman holding rod vertical during observations.

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

Observer riding ahead. Level crew of W. H. Burger

W. H. Burger observing. Note standing straight up to observe - minimizing fatigue. Level crew of W. H. Burger

First order leveling. Mechanized leveling with velocipede. Party of M. E. Lutz