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Data center campus · former Alcoa Eastalco aluminum plant site off Manor Woods Road and Ballenger Creek Pike, north of Adamstown (5601 Manor Woods Road, Frederick), Frederick County, Maryland

Quantum Frederick (Frederick Digital Campus)

Under construction as of Sept. 14, 2026

A 2,100-acre data center park on the former Eastalco aluminum smelter site near Adamstown, where Aligned, Rowan and Amazon hold separate parcels (Aligned's buildings are under construction) and Frederick County has confined new data centers to an overlay zone around the site. Also known as: Quantum Maryland, Quantum Loophole campus, former Alcoa Eastalco Works site, Aligned Data Centers IAD-04 and IAD-06, Rowan Bauxite I, II and III, Amazon Data Services, 3250 Digital Drive.

Cite← Maryland data centers
Allegany CountyAnne Arundel CountyBaltimore CountyBaltimore (city)Calvert CountyCaroline CountyCarroll CountyCecil CountyCharles CountyDorchester CountyFrederick CountyGarrett CountyHarford CountyHoward CountyKent CountyMontgomery CountyPrince George's CountyQueen Anne's CountySomerset CountySt. Mary's CountyTalbot CountyWashington CountyWicomico CountyWorcester CountyQuantum Frederick (Frederick Digital Campus) · Under construction · 2,400 MW
Power2,400MW reported · stated
Site2,100acres

Who is behind it

ProjectQuantum Frederick (Frederick Digital Campus)Also: Quantum Maryland, Quantum Loophole campus, former Alcoa Eastalco Works site, Aligned Data Centers IAD-04 and IAD-06, Rowan Bauxite I, II and III, Amazon Data Services, 3250 Digital Drive
Developer and teamCatellus Development Corporation (TPG Real Estate), land developer, through Quantum Maryland, LLC
Aligned Data Centers (through Aligned Data Centers (MD) PropCo, LLC)
Rowan Digital Infrastructure (Bauxite I, II and III parcels)
Amazon Data Services, Inc.
End userNot found in the recordsNot yet named in any record or credited report we have found.

The record, newest first

  1. Technical.ly reported that Quantum Maryland sued the county executive, the county and its planning commission in Frederick County Circuit Court over the hold and the rejected agreement. (Technical.ly, Oct. 9, 2026)

  2. Fitzwater rejected Quantum Maryland's request for a Development Rights and Responsibilities Agreement, which carried a proposed community benefits package, and extended the application hold to July 1, 2027. (Frederick County Executive, Sept. 14, 2026; Frederick County Executive, Sept. 14, 2026; Frederick County Government, Oct. 25, 2026)

  3. County Executive Jessica Fitzwater ordered a hold on new data center and substation applications through Dec. 31, 2026, exempting parcels with public-facilities approvals before June 17, 2025; a county map showed about 1,297 overlay acres in that exempt group. (Frederick County Executive, July 1, 2026; Frederick County Division of Planning and Permitting, July 14, 2026)

  4. The Supreme Court of Maryland ended a petition drive, signed by more than 20,000 residents, to put the overlay map to a referendum. (NBC4 Washington, July 3, 2026; WYPR, July 2, 2026)

  5. MDE's permit to construct for Amazon Data Services' data center at 3250 Digital Drive, with 99 diesel emergency generators, took effect after public meetings in April and December 2025. (Maryland Department of the Environment, Air and Radiation Administration, March 25, 2026)

  6. Aligned's second building on its 75-acre parcel, IAD-06, a 72 MW building, reached its structural top-out; its first building, IAD-04, broke ground in 2025. (DatacenterDynamics, March 12, 2026)

  7. The council adopted the overlay map, about 2,615 acres, by a 5-2 vote, along with rezoning of about 838 acres to industrial use. (Frederick County Council, Jan. 20, 2026; Frederick County Government, Oct. 25, 2026; Frederick County Government Relations Office, Sept. 2026)

  8. The County Council passed CB 25-09, limiting new data centers to a mapped overlay zone around the former Eastalco site; a June 2025 executive order had paused new applications while it was drafted. (Frederick County Government Relations Office, Sept. 2026; Frederick County Government, Sept. 2026)

  9. MDE issued Aligned a permit to construct 172 diesel emergency generators for a four-building campus at 5601 Manor Woods Road. (Maryland Department of the Environment, Air and Radiation Administration, Jan. 30, 2025)

  10. TPG's Catellus took over as sole developer of the 2,100-acre campus after Quantum Loophole stepped back and the two sides dropped their litigation. (DatacenterDynamics, Dec. 23, 2024; Catellus Development Corporation, Oct. 25, 2026; Maryland Department of the Environment, Oct. 25, 2026)

Conflicts and open questions

  • Counted as one campus: the county, MDE and the developer treat the former Eastalco site as one park with separate parcels (Aligned; Rowan's Bauxite I, II and III; Amazon). A county map dated July 2026 lists approved site plans of 74.89 acres (Aligned), 151.17 acres (Bauxite), 177.68 acres (Bauxite II) and 79.52 acres (Bauxite III).
  • Which buildings, if any, are already operating was not confirmed in the records reviewed.
  • The referendum ruling and the October 2026 lawsuit are taken from news reports; the court files were not opened.

The full record

Status note
Aligned's buildings are under construction on a parcel approved before June 2025; new applications in the county are on hold until July 1, 2027, and the county executive rejected the land developer's request for a development rights agreement.
Power note
2.4 GW is the power the land developer, Catellus, says is under development across the 2,100-acre campus. Individual parcels: Aligned's four buildings were reported at 264 MW in total (DatacenterDynamics); Amazon's air permit covers 92 generators of 2,750 kW each, a backup-power figure, not the buildings' load.
Evidence
Primary public records
Size class
50 MW or more (tracker scope)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.