The official Vermont color range is explicitly sourced from Greenstone's 58 quarries in Vermont's Slate Valley and lists Vermont Gray Black (Briar Hill), Vermont Unfading Gray and Non-weathering Mottled Green / Purple. The page separately identifies the Spanish Black and Legacy Gray/Black exceptions, which are excluded. Named product pages corroborate the three retained identities. No single permit is inferred from the quarry network.
The official Vermont color range is explicitly sourced from Greenstone's 58 quarries in Vermont's Slate Valley and lists Vermont Gray Black (Briar Hill), Vermont Unfading Gray and Non-weathering Mottled Green / Purple. The page separately identifies the Spanish Black and Legacy Gray/Black exceptions, which are excluded. Named product pages corroborate the three retained identities. No single permit is inferred from the quarry network.
The official Vermont color range is explicitly sourced from Greenstone's 58 quarries in Vermont's Slate Valley and lists Vermont Gray Black (Briar Hill), Vermont Unfading Gray and Non-weathering Mottled Green / Purple. The page separately identifies the Spanish Black and Legacy Gray/Black exceptions, which are excluded. Named product pages corroborate the three retained identities. No single permit is inferred from the quarry network.
The official Vermont color range is explicitly sourced from Greenstone's 58 quarries in Vermont's Slate Valley and lists Vermont Gray Black (Briar Hill), Vermont Unfading Gray and Non-weathering Mottled Green / Purple. The page separately identifies the Spanish Black and Legacy Gray/Black exceptions, which are excluded. Named product pages corroborate the three retained identities. No single permit is inferred from the quarry network.
The official Vermont color range is explicitly sourced from Greenstone's 58 quarries in Vermont's Slate Valley and lists Vermont Gray Black (Briar Hill), Vermont Unfading Gray and Non-weathering Mottled Green / Purple. The page separately identifies the Spanish Black and Legacy Gray/Black exceptions, which are excluded. Named product pages corroborate the three retained identities. No single permit is inferred from the quarry network.
The official Vermont color range is explicitly sourced from Greenstone's 58 quarries in Vermont's Slate Valley and lists Vermont Gray Black (Briar Hill), Vermont Unfading Gray and Non-weathering Mottled Green / Purple. The page separately identifies the Spanish Black and Legacy Gray/Black exceptions, which are excluded. Named product pages corroborate the three retained identities. No single permit is inferred from the quarry network.
The official Vermont color range is explicitly sourced from Greenstone's 58 quarries in Vermont's Slate Valley and lists Vermont Gray Black (Briar Hill), Vermont Unfading Gray and Non-weathering Mottled Green / Purple. The page separately identifies the Spanish Black and Legacy Gray/Black exceptions, which are excluded. Named product pages corroborate the three retained identities. No single permit is inferred from the quarry network.
The official Vermont color range is explicitly sourced from Greenstone's 58 quarries in Vermont's Slate Valley and lists Vermont Gray Black (Briar Hill), Vermont Unfading Gray and Non-weathering Mottled Green / Purple. The page separately identifies the Spanish Black and Legacy Gray/Black exceptions, which are excluded. Named product pages corroborate the three retained identities. No single permit is inferred from the quarry network.
The official Vermont color range is explicitly sourced from Greenstone's 58 quarries in Vermont's Slate Valley and lists Vermont Gray Black (Briar Hill), Vermont Unfading Gray and Non-weathering Mottled Green / Purple. The page separately identifies the Spanish Black and Legacy Gray/Black exceptions, which are excluded. Named product pages corroborate the three retained identities. No single permit is inferred from the quarry network.
The official Vermont color range is explicitly sourced from Greenstone's 58 quarries in Vermont's Slate Valley and lists Vermont Gray Black (Briar Hill), Vermont Unfading Gray and Non-weathering Mottled Green / Purple. The page separately identifies the Spanish Black and Legacy Gray/Black exceptions, which are excluded. Named product pages corroborate the three retained identities. No single permit is inferred from the quarry network.
The official Vermont color range is explicitly sourced from Greenstone's 58 quarries in Vermont's Slate Valley and lists Vermont Gray Black (Briar Hill), Vermont Unfading Gray and Non-weathering Mottled Green / Purple. The page separately identifies the Spanish Black and Legacy Gray/Black exceptions, which are excluded. Named product pages corroborate the three retained identities. No single permit is inferred from the quarry network.
The official Vermont color range is explicitly sourced from Greenstone's 58 quarries in Vermont's Slate Valley and lists Vermont Gray Black (Briar Hill), Vermont Unfading Gray and Non-weathering Mottled Green / Purple. The page separately identifies the Spanish Black and Legacy Gray/Black exceptions, which are excluded. Named product pages corroborate the three retained identities. No single permit is inferred from the quarry network.
Colours and uses reflect the linked source descriptions. Confirm origin, samples and suitability for the proposed application with the producer.
4 linked MSHA operations
These are the records linked by the curated register, which may cover only part of the producer’s operations. Portable records and facilities are identified separately.
MSHA’s NO_EMPLOYEES field comes from the Mine Information Form. The snapshot is dated 18 Sept 2026; it does not give this field a reporting-period date. These are mine-record figures, not current company headcounts or proof of production. MSHA field definitions.
Why this producer is here
Documented materials or architectural quarry records support this listing. An exact mine identity is not inferred where no supported association exists. NSI membership, photographs and employee count are not eligibility requirements.
Register grouping
Greenstone Slate / Briar Hill QuarryCurated relationship; not an independent ownership audit.