Pennsylvania Geological Survey - Historical Photographs - Browse all items - Pennsylvania Photos and Documents

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Pennsylvania Geological Survey - Historical Photographs - Browse all items - Pennsylvania Photos and Documents

Ice Mine at Trough Creek State Park

Subject	State Parks
Creator	Way, John H.
Date	1973-03

Ice Mine at Trough Creek State Park

Subject	State Parks
Creator	Way, John H.
Date	1973-03

Ice on Susquehanna River

Subject	Miscellaneous
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-03-10

Ice on Susquehanna River

Subject	Miscellaneous
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-03-10

Ice piled along bank of river

Subject	Miscellaneous
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-03-10

Ice piled along bank of Susquehanna River

Subject	Miscellaneous
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-03-22

Ice piled along bank of Susquehanna River

Subject	Miscellaneous
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-03-10

Ice piled along bank of Susquehanna River

Subject	Miscellaneous
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-03-10

Ice piled along river bank

Subject	Miscellaneous
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1926-02-03

Ice stalagmites

Subject	Caves
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1938-11-30

I. C. Leiper home built of mica gneiss 1785, plastered

Subject	Cities, Towns, and Buildings
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date

I. C. White, State Line Dam

Subject	Engineering Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-06-07

I. C. White, State Line Dam

Subject	Engineering Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1923-06-07

Illinoian sand and gravel

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1927

Illinoian till at 680 feet

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1934-08

Illinois moraine

Subject	Glacial Geology
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1931-02-01

Inclined Salina rocks

Subject	Structure-Folds
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1921-08-16

Incline of small coal mine

Subject	Nonmetallic Mineral Resources

Incline of small coal mine

Subject	Nonmetallic Mineral Resources
Creator	Moseley, John Reed
Date	1950-08

Independence Island

Subject	Surface Water
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1930-06-01

Independence Island, Jauss Island to left

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1922-10-01

Indian carving

Subject	Miscellaneous
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1930-06-18

Indian Echo Caverns

Subject	Caves

Indian Echo Caverns

Subject	Caves

Indian Echo Cave south of Hummelstown

Subject	Sinkholes
Creator	Bolles, William H.
Date	1971

Indian Echo Cave south of Hummelstown

Subject	Sinkholes
Creator	Bolles, William H.
Date	1971

Indian Echo Cave south of Hummelstown

Subject	Sinkholes
Creator	Bolles, William H.
Date	1971

Indian Echo Cave south of Hummelstown

Subject	Sinkholes
Creator	Bolles, William H.
Date	1971

Indian Echo Cave south of Hummelstown

Subject	Sinkholes
Creator	Bolles, William H.
Date	1971

Indian Echo Cave south of Hummelstown

Subject	Sinkholes
Creator	Bolles, William H.
Date	1971

Indian Echo Cave south of Hummelstown

Subject	Sinkholes
Creator	Bolles, William H.
Date	1971

Indian Echo Cave south of Hummelstown

Subject	Sinkholes
Creator	Bolles, William H.
Date	1971

Indian Echo Cave south of Hummelstown

Subject	Sinkholes
Creator	Bolles, William H.
Date	1971

Indian Echo Cave south of Hummelstown

Subject	Sinkholes
Creator	Bolles, William H.
Date	1971

Indian Echo Cave south of Hummelstown

Subject	Sinkholes
Creator	Bolles, William H.
Date	1971

Indiantown Gap

Subject	Topography
Creator	Ashley, Geo. H. (George Hall), 1866-1951

Ingham Spring

Subject	Surface Water
Creator	Stone, Ralph W. (Ralph Walter), 1876-1964
Date	1934-10-10

Inspection platform at Pennsylvania No. 6 Colliery

Subject	Mineral Resources-Coal
Creator	Fraser, Thomas
Date	Summer 1926

In stripping on E coal

Subject	Mineral Resources-Coal
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1940-10-19

Interior of chapel, Mercersburg Academy

Subject	Cities, Towns, and Buildings
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1928-05-06

Interior of Chapel, Mercersburg Academy

Subject	Cities, Towns, and Buildings
Creator	Ashley, Geo. H. (George Hall), 1866-1951
Date	1928-05-06

Interstate 283 and Harrisburg East interchange of Pennsylvania Turnpike

Subject	Interstate Highway
Creator	Bolles, William H.
Date	1973-05-10

Interstate 283, looking west

Subject	Interstate Highway
Creator	Bolles, William H.
Date	1973-05-10

Interstate 80

Subject	Interstate Highway
Creator	Geyer, Alan R.

Interstate 80

Subject	Interstate Highway
Creator	Geyer, Alan R.

Interstate 80

Subject	Interstate Highway
Creator	Geyer, Alan R.

Interstate 80, Allegheny River bridge

Subject	Interstate Highway
Creator	Geyer, Alan R.

Interstate 80, Clearfield exit

Subject	Interstate Highway
Creator	Geyer, Alan R.

Interstate 80, Clearfield exit

Subject	Interstate Highway
Creator	Geyer, Alan R.

Interstate 80, mile 11 and 1200

Subject	Interstate Highway
Creator	Geyer, Alan R.