Amherst, New Hampshire Granite Quarries Return to mindatnh front page. Click on image for larger view | |
This page documents the location and appearence of many Amherst, New Hampshire granite quarries. It is probable that there are many more beyond those shown here.
Photos taken 2014. Adjacent town, Milford, has many larger granite quarries, one still operational. The old Amherst quarries mostly produced quarried granite
for local foundations of barns and farm houses.
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Reference: Amherst, NH Topo Map 1 Location: Amherst, NH Notes: Founder's Way (a new development) is not shown on this topo map. |
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Reference: Amherst, NH Topo Map 2 Location: Amherst, NH Notes: There are many granite quarries on Patch Hill, including several large ones on the south-western (Milford) side. The Milford Quarry Hill Condominiums encircle a large quarry pond in the lower left side of this topo map view. |
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Reference: Patch Hill Trail Map Location: Amherst, NH Notes: The Patch Hill Trail and conservation area is accessable of Lyndeborough Rd. |
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Reference: AQ1 - Off Founder's Way Location: 42 deg 51.291’ N 71 deg 38.346‘ W Notes: Two views |
Reference: AQ2 - Off Founder's Way Location: 42 deg 51.137’ N 71 deg 38.757‘ W Notes: |
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Reference: Pegmatite rock - off Founder's Way Location: Roadside, off Founder's Way Notes: Coarse pegmatite dike rock is present in the country gneiss on Patch Hill. Granite quarries avoided these dikes, because this rock could not be split into nice square blocks. These dikes have sometimes been exposed during recent construction activities. The principal mineral components present here are pink and white feldspar, black biotite mica, and gray quartz. This boulder is about two feet across. |
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Reference: Gneiss rock - off Founder's Way Location: Roadside, off Founder's Way Notes: A freshly blasted boulder of banded gneiss rock. This is the typical "country rock" of Patch Hill. The boulder is about two feet across. Large bodies of homogeneous gray granite are present in the Patch Hill gneiss. These homogenious granite rock bodies were sought by quarrymen. |
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Reference: AQ4 - Trail off Founders Way Location: 42 deg 51.284’ N 71 deg 38.663‘ W Notes: |
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Reference: AQ4 - Trail off Founders Way Location: 42 deg 51.284’ N 71 deg 38.663‘ W Notes: |
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Reference: AQ6 - Trail off Founders Way Location: 42 deg 51.385’ N 71 deg 38.659‘ W Notes: Two views. A large home has been built adjacent to this quarry pond since this 2014 photograph. |
Reference: AQ5 - Quarried granite block Location: Trail off Founder's Way Notes: The three foot long edge of this quarried grinite block shows the series of drill holes that were bored to split it. |
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Reference: "Sargent Quarry", AQ7 Location: 42 deg 51.499’ N 71 deg 36.596‘ W Notes: Off Sargent Quarry Rd. |
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Reference: "Carter Quarry", AQ8 Location: 42 deg 51.499’ N 71 deg 36.596‘ W Notes: Off Thorntons Ferry Rd. #1 |
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Reference: Patch Hill Trail Quarry, AQ9 Location: 42 deg 51.428’ N 71 deg 39.357‘ W Notes: |
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Reference: Granite block with steel bolts, AQ9 Location: 42 deg 51.428’ N 71 deg 39.357‘ W Notes: This granite block with steel bolts was likely the base for the quarry crane, (see AQ11 photos) |
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Reference: Foundation for workshop, AQ9 Location: 42 deg 51.428’ N 71 deg 39.357‘ W Notes: Two views |
Reference: Commerative Bench, AQ9 Location: 42 deg 51.428’ N 71 deg 39.357‘ W Notes: |
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Reference: Patch Hill Trail Quarry, AQ9a Location: About 50 yards south of 42 deg 51.428’ N 71 deg 39.357‘ W Notes: There is a second quarry opening about 50 yards south of the AQ9 quarry. |
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Reference: Patch Hill Trail Quarry, AQ10 Location: 42 deg 51.360’ N 71 deg 39.384‘ W Notes: Although this quarry is adjacent to the trail, it is not marked on the Patch Hill Trail map, perhaps it may be on private land. Most Amherst quarries have remarkably large piles granite waste rock, especially when compared to the size of the quarry pit. One can ponder the effort required to extract good blocks! |
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Reference: Patch Hill Trail Quarry, AQ11 Location: 42 deg 51.184’ N 71 deg 39.240‘ W Notes: Two views. This is the second largest Amherst quarry seen, (AQ6 being the largest). |
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Reference: Patch Hill Trail Quarry, AQ11 sign Location: 42 deg 51.184’ N 71 deg 39.240‘ W Notes: This informative sign at the quarry was unexpected.. |
Reference: Patch Hill Trail Quarry, AQ11 Mast of derrick Location: 42 deg 51.184’ N 71 deg 39.240‘ W Notes: See sign pictoral. |
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Reference: Patch Hill Trail Quarry, AQ11 - Compressor Location: 42 deg 51.184’ N 71 deg 39.240‘ W Notes: Two views |
Reference: Patch Hill Trail Quarry, AQ11 - Granite block Location: 42 deg 51.184’ N 71 deg 39.240‘ W Notes: A one foot block of homogeneous (quality) gray granite from the AQ11 quarry. (Brown is organic staining.) |
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Reference: 18 inch drills for granite quarrying, tip. Location: Notes: From the collection of Tom Mortimer, Amherst, NH The drill end was a flat tapered wedge. |