Gwynedd tunnel (Lansdale-Gwynedd tunnel), Upper Gwynedd Township, Montgomery County, Pennsylvania, USAi
| Regional Level Types | |
|---|---|
| Gwynedd tunnel (Lansdale-Gwynedd tunnel) | Tunnel |
| Upper Gwynedd Township | Township |
| Montgomery County | County |
| Pennsylvania | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 11' 50'' North , 75° 16' 4'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| North Wales | 3,250 (2017) | 1.8km |
| Spring House | 3,804 (2017) | 3.7km |
| Blue Bell | 6,067 (2017) | 5.0km |
| Lansdale | 16,512 (2017) | 5.1km |
| Montgomeryville | 12,624 (2017) | 5.9km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Friends of Mineralogy - Pennsylvania Chapter | St. Peters, Pennsylvania | 13km |
| Delaware Valley Paleontological Society | Philadelphia, Pennsylvania | 29km |
| Philadelphia Mineralogical Society | Philadelphia, Pennsylvania | 29km |
| Leidy Microscopical Society | Fairless Hills, Pennsylvania | 35km |
| Tuscarora Lapidary Society | Brookhaven, Pennsylvania | 38km |
A short tunnel on the former Pennsylvania and Reading Railroad, now SEPTA, just north of the Gwynedd Valley station, between North Wales and Gywnedd Valley. The roof of the tunnel has been removed, the two tracks now pass through an open cut.
Occurrences in the Gwynedd and North Wales members of the Lockatong formation of the Newark supergroup, late Carnian, upper Triassic.
Spoils piles are spread over 15 acres. Various fossils have been found here, first noted as early as 1858 by Leidy. Finds include pterosaur bones, fish scales and reptile teeth.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Baryte | BaSO4 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
Other Regions, Features and Areas containing this locality
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Gwynedd tunnel, Upper Gwynedd Township, Montgomery County, Pennsylvania, USA