·         Tunnels / Construction / Laborers

o        Description: This page contains information about Mixing and applying gunnite to the tunnel

·         Tunnels / Construction / Laborers

o        Description: This page contains information about Nozzlemen wear goggles and respirators when spraying gunnite

·         Tunnels / Construction / Laborers

o        Description: This page contains information about Sand-blasting a massive portal on Tunnel #2

·         Tunnels / Construction / Laborers

o        Description: This page contains information about Upper end tunnel on #3 Summit Road

·         Tunnels / Construction / Laborers

o        Description: This page contains information about Lower portal Tunnel #3

·         Tunnels / Construction / Laborers

o        Description: This page contains information about Workmen on the lower portal of Tunnel #2

·         Tunnels / Construction / Structural frames

o        Description: This page contains information about “Top-arch form in position under portal of diversion tunnel No. 2. Forms of trashrack structure abutment are seen.“

·         Tunnels / Dam construction

o        Description: This page contains information about “Forms for trashrack structure in place at inlet portal of diversion tunnel No. 3. Port through which tunnel concrete pouring operations will be carried on is seen.“

·         Tunnels / Dam construction

o        Description: This page contains information about “Sidewall tunnel forms being utilized in forming bulkhead gate structure at inlet portal of Diversion Tunnel No. 1.“

·         Tunnels / Dam construction

o        Description: This page contains information about “Completed tunnel lining in Diversion Tunnel No. 4. Invert truck road has been removed disclosing full section.“

·         Tunnels / Dam construction

o        Description: This page contains information about “Completed tunnel lining at intake portal of Diversion Tunnel No. 4, view looking toward entrance. Pressure grouting jumbo seen in operation.“

·         Tunnels / Dam construction

o        Description: This page contains information about “View showing a completed portion of the Pathfinder tunnel at the dam site, near the east portal of the tunnel.“

·         Tunnels / Dam construction

o        Description: This page contains information about “Salt River - Power Canal (Force Account) - Upstream end of Gray tunnel.“

·         Tunnels / Dam construction

o        Description: This page contains information about “Salt River - Power Canal (Force Account) - Partially completed gunite lining in Gray tunnel, showing reinforcement anchor bolts in place.“

·         Tunnels / Dam construction

o        Description: This page contains information about Salt River - Power Canal - Structure 8J (Gray Tunnel). View of tunnel outlet. Note failure of arch crown and invert. Sta. 478.“

·         Tunnels / Dam construction / Canyons / Bridges / Trucks

o        Description: This page contains information about “Bulkhead gate structure and trash rack structure at inlet portals of diversion Tunnel Nos. 4 and 3 as seen from the Nevada side. Bridge at right is temporary span from which temporary barrier will be dumped to divert river during cofferdam construction.“

·         Tunnels / Dam construction / Concrete

o        Description: This page contains information about “Looking downstream through Diversion Tunnel No. 2 showing completed concrete pour. Upper portion is painted with water sealing compound which prevented too rapid drying out during early stages of curing. Truck road along invert will be removed prior to actual diversion.“

·         Tunnels / Dam construction / Flood damage

o        Description: This page contains information about “Pathfinder dam; view of damage done by water below the high pressure gates in the Pathfinder tunnel; looking upstream.“

·         Tunnels / Dam construction / Gates

o        Description: This page contains information about “Inlet portal, Diversion Tunnel No. 4, showing bulkhead gate steel erected in structure.“

·         Tunnels / Dam construction / Government officials / Construction inspections

o        Description: This page contains information about “Secretary of the Interior Ray Lyman Wilbur photographed in front of outlet portal of tunnel No. 2 during his tour of inspection of Boulder Canyon on September 23, 1932.“

·         Tunnels / Dam construction / Government officials / Construction inspections

o        Description: This page contains information about “Inspection party accompanying the Secretary of the Interior photographed in Black Canyon.“

·         Tunnels / Dam construction / Rivers

o        Description: This page contains information about “General view of Black Canyon looking upstream toward damsite showing conditions immediately prior to diversion of Colorado River through Diversion Tunnels Nos. 3 and 4.“

·         Tunnels / Dam construction / Steam shovels / Bulldozers / Building materials

o        Description: This page contains information about “Intake diversion dam. Diversion of Salt River through intake tunnel. Shovel and bulldozer on right placing silt over gravel fill.“

·         Tunnels / Dam construction / Steam shovels / Bulldozers / Building materials

o        Description: This page contains information about “Intake diversion dam. Diversion of Salt River through intake tunnel flow 189 sec.-ft.“

·         Tunnels / Dam construction / Steam shovels / Excavation

o        Description: This page contains information about “Power shovel loading muck trucks in heading of upper Nevada penstock header.“

·         Tunnels / Excavation / Forms / Structrual frames / Construction

o        Description: This page contains information about “Excavation and forms for tunnel plug in diversion tunnel No. 4.“

·         Tunnels / Flood control / Water pumps / Dikes (Engineering) / Canyons / Dam construction

o        Description: This page contains information about “Scene at outlet portal of diversion tunnel No. 2 during flash flood of August 31, 1932. Workmen are installing high pressure pumps and strengthening dikes. Note water pouring through earth and rock barrier at right.“

·         Tunnels / Flood control / Water pumps / Dikes (Engineering) / Canyons / Dam construction / Steam shovel

o        Description: This page contains information about “Water breaking through earth and rock fill dike at outlet portal of diversion tunnel No. 2 during flash flood of August 31, 1932.“

·         Tunnels / Gates

o        Description: This page contains information about “Downstream side of racks at head of sluicing tunnel.“

·         Tunnels / Horseback riding / National parks & reserves

o        Description: This page contains information about Horseback party at west entrance to Zion Tunnel. This tunnel will shorten the distance from Zion to Bryce by 70 miles, from Zion to the North Rim of the Grand Canyon --- miles. See Z-150 for further data.

·         Tunnels / Laborers

o        Description: This page contains information about Sand blasting the lining of a tunnel

·         Tunnels / Laborers / Construction

o        Description: This page contains information about Strawberry Valley Project - Heading crew - At West Portal of Tunnel - Utah

·         Tunnels / Laboros / Railroad tracks

o        Description: This page contains information about Strawberry Valley Project - Tunnel, West portal cut - Utah

·         Tunnels / Machinery / Hoisting machinery

o        Description: This page contains information about “Looking downstream through diversion tunnel No. 2 from point near inlet portal. Tracks over which gantry crane travels when pouring invert concrete are seen to right and left.“

·         Tunnels / National parks & reserves

o        Description: This page contains information about West entrance to Zion Tunnel. Zion Tunnel is 6000 feet long, cut through solid sandstone. It is said to be the longest highway tunnel in the world with the exception of the tubes under the Hudson River.

·         Tunnels / National parks & reserves

o        Description: This page contains information about West portal of small tunnel, Mt. Carmel road.

·         Tunnels / Railroad tracks

o        Description: This page contains information about Uncompahgre Project - Gunnison Tunnel - Finished section of Interior - Colorado

·         Tunnels / Railroad tracks / Expedition photographs / Expeditions & surveys / Stereographs

o        Description: This page contains information about Tunnel number 2 at the head of Echo Canyon. Summit County, Utah.

·         Tunnels / Roads

o        Description: This page contains information about Lower portal of tunnel #2

·         Tunnels / Roads

o        Description: This page contains information about “Tunnel on highway along Wind River in Wyoming.“

·         Tunnels / Roads / Automobiles / National parks & reserves

o        Description: This page contains information about West portal of small tunnel, Mt. Carmel road.

·         Tunnels / Roads / Construction / Laborers

o        Description: This page contains information about Gunniting operations on Tunnel #1

·         Tunnels / Rocks

o        Description: This page contains information about “Pathfinder tunnel; showing boulder lodged in waterway below A gate.“

·         Tunnels / Structural frames

o        Description: This page contains information about Uncompahgre Project - Timbering in tunnel - West end - Colorado

·         Tunnels / Structural frames / Construction

o        Description: This page contains information about Strawberry Valley Project - Tunnel, timbered section - Utah

·         Turkeys

o        Description: This page contains information about Turkeys at the Jacob Reuter farm. Rural North Dakota

·         Turkeys

o        Description: This page contains information about Photographs, with captions, of turkeys preparation for market at Walker River, Nevada, from 1937 Carson Agency Annual Extension Report, which documents the first year in which Carson Agency had an extension agent.

·         Turkeys / Women / Poultry houses

o        Description: This page contains information about Photographs, with captions, of turkey flocks, Nevada, from 1937 Carson Agency Annual Extension Report, which documents the first year in which Carson Agency had an extension agent.

·         Typewriters / Newspaper industry / Newsrooms / Japanese-Americans / Japanese-American relocation / Relocation camps

o        Description: This page contains information about Heart Mountain Relocation Center, Heart Mountain, Wyoming. This complicated looking gadget is a Japanese typewriter, the private property of a resident of Japanese ancestry at the Heart Mountain Relocation Center. The machine, loaned to the center newspaper for its Japanese section which is printed for the purpose of informing those residents unable to read English, is here being assembled by Sentinel staff members. The paper is wound on the round drum, which operates on rollers over the type bed, spotted over the required character, an arm picks the metal slug from the bed, presses it against the paper and returns it to its niche. Due to the short hand character of Japanese printing, the typewriter is nearly equal in speed in conveying thoughts as a standard English typewriter.

·         Typewriters / Office workers / Newspaper industry / apanese-Americans / Japanese-American relocation / Relocation camps

o        Description: This page contains information about Heart Mountain Relocation Center, Heart Mountain, Wyoming. Members of the staff and volunteer helpers reassemble a privately owned Japanese typewriter to be used for the Japanese languge edition of the Heart Mountain Sentinel, Center newspaper. The paper is wrapped around the rubber cylinder, the typist pushes the roller riding platten over the bed of type. After picking the next character, a lever is operated which picks up the type, presses it against the paper and replaces it in its niche. Complicated in appearance and operation, due to the short hand characteristics of Japanese writing, the advance of thought is nearly equal in speed to a standard English typwriter.

·         Typwriting / Typewriters / Schools / Classrooms / Teachers / Women / Students / Japanese-Americans / Japanese-American relocation / Relocation camps

o        Description: This page contains information about Granada Relocation Center, Amache, Colorado. High school typing class.

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