● portfotolio ● albums of James St. John

Tuvalu Postage Stamps

Heisey Glass - Amber & Sultana

Slovakia Rocks, Minerals, Fossils

China Postage Stamps

West Germany Postage Stamps

Russia Postage Stamps

Fulgurites

Canada Postage Stamps

Henbury Meteorite & Henbury Impact Crater Field (Australia)

Ensisheim Meteorite (Ordinary Chondrite)

Oxbow Lakes

Progressive Color Proofs

Wildlife Seals

Indiana Earthquakes

Portugal Postage Stamps

Mississippi Earthquakes

Plate Number Blocks, Plate Number Strips, Plate Number Coils, Plate Number Singles

Sweden Postage Stamps

Experimental Christmas Seals (Test Christmas Seals)

Sundhnúkur Crater Row eruption, Iceland (November-December 2024)

1911 Christmas Seals

Comets

Planetary Geology

Catholic Seals

Guinea-Bissau Postage Stamps

Precancelled Stamps

Parcel Post Stamps

Abraham Lincoln

Benjamin Franklin

George Washington

Marshall Sandstone (Lower Mississippian; Michigan, USA)

White Pine Mine (Upper Peninsula of Michigan, USA)

Overrun Countries Postage Stamps (1943-1944)

Transportation Series Postage Stamps (1981-1995)

Revenue Stamps

Proofs

Fiji Postage Stamps

Discontinued Post Office (DPO) Covers & Cancels

Israel Postage Stamps

Great Britain Postage Stamps

Special Cancellations, Event Covers, First Day Covers

Nuclear Ship Savannah

New Zealand Postage Stamps

Barbados Postage Stamps

Geology & Postage Stamps

Minerals - Sulfates (Hexahydrite)

St. Vincent & the Grenadines Postage Stamps

Liberia Postage Stamps

Antigua & Barbuda Postage Stamps

Marshall Islands Postage Stamps

Grenada Postage Stamps

Gambia Postage Stamps

Onondaga Limestone (Middle Devonian; New York State, USA & Ontario, Canada)

Sediment Sizes & Sediment Shapes

Guyana Postage Stamps

Ukraine Postage Stamps

Cyprus Postage Stamps

Iran Postage Stamps

Cayman Islands Postage Stamps

Sheen Obsidian

Gray Obsidian

Rainbow Obsidian

Snowflake Obsidian

Elements

Bermuda Postage Stamps

Montserrat Postage Stamps

Cuba Postage Stamps

Ras al Khaima Postage Stamps

Australia Postage Stamps

Bahrain Postage Stamps

Chile Postage Stamps

British Antarctic Territory Postage Stamps

Ajman Postage Stamps

Fujeira Postage Stamps

Khor Fakkan Postage Stamps

Manama Postage Stamps

French Southern & Antarctic Territory Postage Stamps

Australian Antarctic Territory Postage Stamps

North Korea Postage Stamps

Umm al Qiwain Postage Stamps

Sharjah Postage Stamps

Germany Postage Stamps

United States of America Postage Stamps

Confederate States of America Postage Stamps

Bahamas Postage Stamps

Postal History

Gorman Nature Center (Mansfield, Ohio, USA)

Keokuk Chert (Keokuk Formation, Lower Mississippian; midwestern USA)

Hanover Cemetery (Hanover, Ohio, USA)

Portulaca (Purslanes)

Helianthus (Sunflowers)

Chrysanthemum (Garden Mums)

Zinnia

Dianthus ("Pinks" and "Sweet Williams")

Tagetes (Marigolds)

Viola (Garden Pansies)

Portugal area Earthquakes

Sundhnúkur Crater Row eruption, Iceland (August-September 2024)

Christmas Seals

Nature Seals

Easter Seals

Rudbeckia hirta (black-eyed susans)

Hoya carnosa (wax plants)

Belamcamda chinensis (blackberry lilies)

Lychnis coronaria (rose campion)

Syria Earthquakes

Flood Group (Midway Geyser Basin, Yellowstone, Wyoming, USA)

Wisconsin Earthquakes

Alnoite

Vietnam Earthquakes

Castle Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Pink Cone Group (Lower Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Unnamed hot spring complex 31 meters ~south of Ragged Spring (Black Sand Basin, Upper Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Gladiolus

Unnamed hot spring WSW of Black Opal Pool (Sapphire Group, Upper Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Unnamed geyser just west of Prawn Geyser (Great Fountain Group, Lower Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Prawn Geyser (Great Fountain Group, Lower Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Little Hucker Geyser (Geyser Hill Group, Upper Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Unnamed geysers near Singlet Geyser (Geyser Hill Group, Upper Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Unnamed perpetual spouter on the southwestern side of Gizmo Geyser (Castle Group, Upper Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Heisey Glass - Emerald

Heisey Glass - Ivorina Verde

Heisey Glass - Canary

Heisey Glass - Alexandrite

Heisey Glass - Ruby

Heisey Glass - Tangerine

Heisey Glass - Cobalt (Stiegel Blue)

Heisey Glass - Opal (Milk Glass)

Heisey Glass - Custard

Heisey Glass - Sahara

Heisey Glass - Moongleam

Heisey Glass (Newark, Ohio, USA)

Snowglobe Geyser (Geyser Hill Group, Upper Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Witches Cauldron (Grand Group, Upper Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Coronet Geyser (Geyser Hill Group, Upper Geyser Basin, Yellowstone, nw Wyoming, USA)

Venezuela Earthquakes

Ohio River (Ohio-Kentucky-Indiana, USA)

Cumberland River (Kentucky-Tennessee, USA)

Oil Creek (northwestern Pennsylvania, USA)

Straight Creek (southern Ohio, USA)

Aroona Creek (South Australia)

Enorama Creek (South Australia)

Murray River (Australia)

Clear Creek (northern Wyoming, USA)

Missouri River (USA)

Toklat River (Alaska, USA)

Chinle Wash (Arizona, USA)

Hot Creek (eastern California, USA)

Big Walnut Creek (central Ohio, USA)

Flat Fork (southwestern Ohio, USA)

Stillwater River (Montana, USA)

Big Sioux River (South Dakota, USA)

Badwater Creek (Wyoming, USA)

Walhonding River (eastern Ohio, USA)

Hamilton's Store (Yellowstone, Wyoming, USA)

Calida Pool (Calida Spring) (Grand Group, Upper Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Pennsylvania Earthquakes

Little Colorado River (Arizona, USA)

Colorado River (southwestern USA)

Wind River (Wyoming, USA)

Rock Creek (Beartooth Mountains, Montana, USA)

Hellroaring Creek (Beartooth Mountains, Montana, USA)

Gooseberry River (Minnesota, USA)

Pike River (Minnesota, USA)

St. Croix River (Minnesota, USA)

Symmes Creek (Muskingum County, Ohio, USA)

Mississippi River (USA)

South Dakota Earthquakes

Sundhnúkur Crater Row eruption, Iceland (May-June 2024)

Goldstone

St. John's Lutheran Church Cemetery (Wytheville, Virginia, USA)

Old Guide's Cemetery (Mammoth Cave National Park, Kentucky, USA)

Mammoth Cave Cemetery (Flint Ridge, Kentucky, USA)

Cedar Hill Cemetery (Newark, Ohio, USA)

Bishop Seybert Cemetery (Flat Rock, northern Ohio, USA)

Bulgaria Rocks & Minerals

Trails made by variable coquina clams (Donax variabilis) (Cayo Costa Island, Florida, USA)

Rumurutiites (R-Chondrites)

Algeria Rocks

Minerals - Silicates (Natrolite)

Laguna Agate (Mexico)

Minerals - Silicates (Mesolite)

Minerals - Silicates (Rhodonite)

Las Choyas Geode Deposit (near-latest Eocene, ~35 Ma; Chihuahua, Mexico)

Auroras

Romania Rocks, Minerals, Fossils

Copper Skulls

Pugh Quarry (near Custar, Ohio, USA)

Malaysia Minerals

Agate (Kentucky, USA)

East Timor Rocks & Minerals

Minerals - Carbonates (Strontianite)

Stoneco Incorporated Maumee Quarry (town of Maumee, Lucas County, Ohio, USA)

Trackside Mileposts & Whistle Boards

Sweets

Minerals - Carbonates (Andersonite)

Minerals - Phosphates (Variscite)

Morocco Earthquakes

Imiter Silver Deposit (near-latest Neoproterozoic, ~550 Ma; Imiter Mine, Anti-Atlas Mountains, Morocco)

Delaware Rocks, Minerals, Fossils

Duff Quarry (north of Huntsville, Ohio, USA)

Hocking Hills (southeastern Ohio, USA)

Korovin Volcano (Aleutian Islands, Alaska, USA)

New Hampshire Earthquakes

Pass of El Ghor (Mammoth Cave, Kentucky, USA)

Mt. Hagafell-Mt. Stóra Skógfell area eruption, Iceland (March-May 2024)

New Jersey Earthquakes

Trillium spp.

Solution Pockets in Caves

Aesculus glabra (Ohio buckeye)

Dicentra spp. (Dutchman's breeches & squirrel corn)

2024 Earthquakes

2023 Earthquakes

2022 Earthquakes

2021 Earthquakes

2020 Earthquakes

2019 Earthquakes

Arkose

Mt. Sýlingarfell area eruption, Iceland (February 2024)

Minerals - Silicates (Milky Quartz)

Minerals - Silicates (Smoky Quartz)

Louisiana Earthquakes

Minerals - Silicates (Amethyst)

Minerals - Silicates (Rose Quartz)

Conchoidal Fracture

Sanibel-Captiva Conservation Foundation's Native Plant Nursery (Sanibel Island, Florida, USA)

Brazil Earthquakes

Hagafell-Grindavik eruption, Iceland (January 2024)

Elk

Czech Republic (Bohemia) Rocks and Fossils

Oklahoma Earthquakes

Thuja spp. (arborvitaes)

San Gabriel Anorthosite Complex (Mesoproterozoic, ~1.2 Ga; San Gabriel Mountains, California, USA)

Siltstone

Maryland Earthquakes

Cockles (Mollusca, Bivalvia, Cardiidae)

"Greek Green Porphyry" (glomeroporphyritic metabasalt) (Tyros Beds, Triassic; near Levetsova, Laconia, Greece)

Greece Rocks & Minerals

Oysters (Mollusca, Bivalvia, Ostreidae)

Arkansas Earthquakes

Columbines

David St. John's photos

Svartsengi-Grindavik eruption, Iceland (December 2023)

Woodpeckers & Flickers

Sea Gulls

Squirrels & Chipmunks

Nebraska Earthquakes

Obituaries

Philippines Rocks & Geology

Mussels (Mollusca, Bivalvia, Mytilidae)

Taxodium (cypress trees)

Metasequoia glyptostroboides (dawn redwood trees)

Fossil Cabin (Como Bluff, Wyoming, USA)

Chunky Gal Complex (Ordovician, ~458 Ma; Blue Ridge, North Carolina, USA)

Cetacean Fossils (Whales, Dolphins, Porpoises)

Lingulid Brachiopods

Dolomitic Marble

Coal Balls

Precious Red Coral

Ohio Meteorites

Devil's Churn (coastal Oregon, USA)

Tillamook Bay (Oregon, USA)

Oregon Coast Scenic Railroad (Garibaldi-Rockaway Beach, Oregon, USA)

Sea Slugs

Thermal Streams

Ceylon / Sri Lanka Rocks & Minerals

Green Bubbler Geyser (Sapphire Group, Upper Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Cobble-boulder marine shoreline (Yaquina Head, Oregon, USA)

Arabian Peninsula area Rocks

Arabian Peninsula area Earthquakes

Yaquina Head (coastal Oregon, USA)

Trains (Videos)

Heceta Head Beach (coastal Oregon, USA)

Marine beach sediments (Heceta Head Beach, coastal Oregon, USA)

Glomeroporphyritic Rocks

Sea Stacks

Yachats Basalt (Upper Eocene, ~36-37 Ma; western Oregon, USA)

El Cajete Pumice (Valles Rhyolite, Upper Pleistocene, 55 to 60 ka; Valles Caldera area, New Mexico, USA)

Lahars ("Volcanic Mudflows")

Cape Creek (coastal Oregon, USA)

Oregon Rivers & Streams

Palisade Rhyolite (Mesoproterozoic, 1096-1097 Ma; Lake Superior area, USA)

Portland, Oregon, USA

Mount Hood Volcano (Cascade Range, Oregon, USA)

Sandy River (Oregon, USA)

Multnomah Falls (Multnomah County, Oregon, USA)

Horsetail Falls (Multnomah County, Oregon, USA)

Meteorites

"Meteor-Wrongs"

Tar Sands & Tar Sandstones

Columbia River Flood Basalt (Miocene, ~15-17 Ma; Pacific Northwest, USA)

Columbia River Gorge (Oregon-Washington border, USA)

Mt. Longonot Volcano (East African Rift Valley, Kenya)

Jade

Pele's Hair

Lapilli & Lapillistone

Ascension Hotspot (equatorial South Atlantic Ocean)

Minerals - Silicates (Vermiculite)

Minerals - Borates (Ulexite)

Italy Earthquakes

Warren Rupp Observatory & Hidden Hollow (near Bellville, Ohio, USA)

Chile Ridge Earthquakes

Indonesia Rocks, Minerals, Fossils

Old geyserite mound (Fountain Group, Lower Geyser Basin, Yellowstone, Wyoming, USA)

Gibbon Meadow Geyser (Gibbon Geyser Basin, Yellowstone, Wyoming, USA)

Unnamed hydrothermal feature SSW of Ledge Geyser (Porcelain Basin, Norris Geyser Basin, Yellowstone, Wyoming, USA)

White Creek (Lower Geyser Basin, Yellowstone, Wyoming, USA)

Absaroka Range (northwestern Wyoming, USA)

Unnamed fumarole (Fountain Group, Lower Geyser Basin, Yellowstone, Wyoming, USA)

Oatmeal Geyser (UNNG-GHG-17a) (unnamed geyser 28 meters NNE of Sponge Geyser) (Geyser Hill Group, Upper Geyser Basin, Yellowstone Hotspot Volcano, nw Wyoming, USA)

Bison spp. (modern & fossil buffalo species)

Shishaldin Volcano (Aleutian Arc, southern Alaska, USA)

Gooseberry Badlands (Willwood Formation, Lower Eocene; Bighorn Basin, Wyoming, USA)

Geldingadalur Valley eruption, Iceland (March to May 2021)

Meradalir Valley eruption, Iceland (August 2022)

Litli Hrútur eruption, Iceland (July 2023)

Steamboat Point (Yellowstone Lake, Wyoming, USA)

Unnamed hot spring south of Jagged Spring (Black Sand Basin, Upper Geyser Basin, Yellowstone, Wyoming, USA)

Active fracture south of Jagged Spring (Black Sand Basin, Upper Geyser Basin, Yellowstone, Wyoming, USA)

Myriad Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Grand Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Sawmill Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Geyser Hill Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Round Spring Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Orange Spring Group & South Orange Spring Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Giant Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Grotto Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Chain Lakes Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Daisy Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Punch Bowl Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Morning Glory Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Cascade Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Old Road Group (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Sapphire Group / Biscuit Basin (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Black Sand Basin (Upper Geyser Basin, Yellowstone, Wyoming, USA)

Erigeron spp. (fleabanes)

Shoshone River (northwestern Wyoming, USA)

Firehole River (Yellowstone, Wyoming, USA)

Driveway Spring (Black Sand Basin, Upper Geyser Basin, Yellowstone, Wyoming, USA)

Lilium sp. (Lilies)

Yellowstone River (Wyoming-Montana, USA)

Unnamed geyser ~8 meters northeast of Shell Spring (Sapphire Group, Upper Geyser Basin, Yellowstone, Wyoming, USA)

West Yellowstone, Montana, USA

Solar Farms & Solar Fields

Iron Spring Creek (Iron Creek) (Yellowstone, Wyoming, USA)

Yellowstone Lake (Wyoming, USA)

Madison River & Madison Canyon (Wyoming-Montana, USA)

Old Faithful Inn (Yellowstone, Wyoming, USA)

Gibbon River (Yellowstone, Wyoming, USA)

Lower Falls (Grand Canyon of the Yellowstone River, Wyoming, USA)

Lewis Falls (Yellowstone, Wyoming, USA)

Tower Falls (Yellowstone, Wyoming, USA)

Wraith Falls (Yellowstone, Wyoming, USA)

Undine Falls (Yellowstone, Wyoming, USA)

Virginia Cascades (Yellowstone, Wyoming, USA)

Kepler Cascades (Yellowstone, Wyoming, USA)

Firehole Falls (Yellowstone, Wyoming, USA)

Upper Falls (Grand Canyon of the Yellowstone River, Wyoming, USA)

Mystic Falls (Yellowstone, Wyoming, USA)

Rustic Falls (Yellowstone, Wyoming, USA)

Gibbon Falls (Yellowstone, Wyoming, USA)

Yooperlite

Rimstone

Duffin Limestone (Middle Devonian; Kentucky, USA)

Big Clifty Sandstone (Upper Mississippian; Kentucky, USA)

Meleagris gallopavo (wild turkeys)

Rock Bolts

Petunias

Rochester Shale (Middle Silurian; New York State, USA)

Minerals - Silicates (Chrysoprase)

Sericho Meteorite

Brenham Meteorite

Seymchan Meteorite

Kossuth Meteorite (Octahedrite)

Fukang Meteorite (Pallasite)

Odessa Meteorite (Octahedrite)

Canyon Diablo Meteorite (Octahedrite)

New Concord Meteorite (Ordinary Chondrite)

Murchison Meteorite (Carbonaceous Chondrite)

Allende Meteorite (Carbonaceous Chondrite)

Chelyabinsk Meteorite (Ordinary Chondrite)

Nantan Meteorite (Octahedrite)

Sikhote-Alin Meteorite (Octahedrite)

Gibeon Meteorite (Octahedrite)

Pahasapa Limestone (Lower Mississippian; Black Hills, South Dakota-Wyoming, USA)

Boyle Formation / Boyle Dolomite (Middle Devonian; Kentucky, USA)

Megasequence Boundaries (= Sloss Sequence Boundaries)

Gunflint Formation (Gunflint Chert) (Paleoproterozoic, ~1.878 Ga; Ontario, Canada)

Paraconformities

Montana Earthquakes

Bleeding Unconformities

North Vernon Limestone (Middle Devonian; Indiana, USA)

Florida Rocks & Fossils

False Earthquakes

New York State Earthquakes

Atlantic Ocean Earthquakes (away from mid-ocean ridges)

Migmatite

Rock House (Black Hand Sandstone, Lower Mississippian; Hocking Hills, Ohio, USA)

Mining & Quarrying

Dandelions

Offshore Western Canada Earthquakes

Iron Mountain mining complex (west of Cedar City, Utah, USA)

Dinosaurs (Plateosaurs)

Wyoming Rocks, Minerals, Fossils

Zuni-Bandera Volcanic Field (Upper Cenozoic; New Mexico, USA)

Talc Schist

Afghanistan Earthquakes

Ecuador Earthquakes

Holder Formation (Upper Pennsylvanian; New Mexico, USA)

Denver Formation (Cretaceous-Tertiary; Colorado, USA)

Colorado Earthquakes

Slovenia Rocks & Minerals

Rio Grande Rift Valley (New Mexico-Colorado, USA)

Hollinger Mine (Timmins, Ontario, Canada)

Four Corners Mine (Dakota Hogback, southwest of Denver, Colorado, USA)

Cerith snails (Mollusca, Gastropoda, Cerithiidae)

Sulawesi area Earthquakes

Kentucky Earthquakes

Bastite

Korea Earthquakes

Crocodilian Fossils

Tarns & Pater Noster Lakes

Shovels

Diplocraterion trace fossils

Jewelbox clams (Mollusca, Bivalvia, Chamidae)

Quad Creek (Beartooth Mountains, southwest of Red Lodge, Montana, USA)

True conchs (Mollusca, Gastropoda, Strombidae)

Florida Seashells

Jingle shells (Mollusca, Bivalvia, Anomiidae)

K2 Stone ("K2 Jasper") (Himalayan Mountains of Pakistan)

"Dendritic Agate"

Lubin Copper Mine (Poland)

Magma Mine (Superior, Arizona, USA)

North Star Mine (Beartooth Mountains, southern Montana, USA)

Kidd Creek Mine (north of Timmins, Ontario, Canada)

Sunstone

Idaho Springs Formation (Paleoproterozoic, ~1.7 Ga; Colorado, USA)

Broadway Avenue & Methodist Church (Mammoth Cave, Kentucky, USA)

Red Rocks Park (west of Denver, Colorado, USA)

Minerals - Hydroxides (Brucite)

Hidden River Cave (Horse Cave, Kentucky, USA)

Staddens Bridge gravel bar (Licking River, east of Newark, Ohio, USA)

Turkey Earthquakes

Frost Polygons

Solomon Trench / San Cristobal Trench area Earthquakes

Streptocarpus sp. (Cape primrose)

Bowtie Arch (west of Moab, Utah, USA)

Corona Arch (west of Moab, Utah, USA)

Himalayan Earthquakes

Lau Basin-Lau Ridge area Earthquakes

Pleistocene terrace alluvium gravel (above the Colorado River, west of Moab, Utah, USA)

Desert Varnish

Jasper & botryoidal jasper ("Red Grape Agate") (Utah, USA)

Corona Arch Trail (west of Moab, Utah, USA)

Romania & Slovakia Earthquakes

Geology, History, Archaeology, Biology of Mammoth Cave National Park (Kentucky, USA)

Wondering Woods Cave (Mammoth Cave National Park, Kentucky, USA)

Sardinia Rocks

Cyprus Rocks

Sicily Rocks, Minerals, Fossils

Corsica Rocks

Monument Rocks & chalk badlands (Smoky Hill Chalk Member, Niobrara Formation, Upper Cretaceous; western Kansas, USA)

Mary Ellen Jasper (Biwabik Iron-Formation, Paleoproterozoic, ~1.878 Ga; Mesabi Iron Range, Minnesota, USA)

Henry Mountains (southeastern Utah, USA)

Entrada Sandstone (upper Middle Jurassic; western USA)

Wild Horse Butte (near Goblin Valley, Utah, USA)

Rock Creek Canyon (Beartooth Mountains, Montana, USA)

Hellroaring Road (Beartooth Mountains, Montana, USA)

Goblin Valley (Utah, USA)

Minerals - Oxides (Pyrolusite)

Indian Ricegrass (Oryzopsis hymenoides) (western USA)

Guadalupe Mountains National Park (Texas, USA)

Silver Islet Mine (Lake Superior, Ontario, Canada)

Naturally Polished Rocks

Percussion Marks & Percussion Cones

Albania Rocks

Contraluz Opal

Stillwater Mine (Beartooth Mountains, Montana, USA)

Sylvinite (halite-sylvite evaporite rock)

Engineering Geology

Ireland Rocks & Fossils

Old Red Sandstone (Devonian; British Isles)

Megaripples

Montana Rivers & Streams

Ship Rock & vicinity (Navajo Volcanic Field, New Mexico, USA)

Pompey's Pillar National Monument (Montana, USA)

Gravestones

Idaho Rocks, Minerals, Fossils

New Guinea area Earthquakes

Blind Arches

Ohio Central Railroad

Norfolk Southern Railway

CSX Transportation (= Chessie-Seaboard Expanded)

Union Pacific Railroad

Burlington Northern and Santa Fe Railway

Alpine Earthquakes

Perlite

Faceted Fire Opal (Mexico)

Puncture Holes

Escalante Petrified Forest State Park (southern Utah, USA)