Former Mine Datacenter Sites in Colorado
At a glance
Decommissioned or active mining land. Mine sites often retain heavy electrical service and water rights from prior operations, and many sit near coal-plant substations now freeing up grid capacity.
Top former mine sites in Colorado
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| Mine Site | Former Mine | El Paso County | — | — | 4.3 yrs | 54.9 |
| Mine Site | Former Mine | El Paso County | — | — | 4.3 yrs | 54.7 |
| Mine Site | Former Mine | El Paso County | — | — | 4.3 yrs | 54.7 |
| Mine Site | Former Mine | Denver County | — | — | 3.5 yrs | 54.2 |
| Mine Site | Former Mine | El Paso County | — | — | 3.5 yrs | 53.7 |
| Mine Site | Former Mine | El Paso County | — | — | 4.3 yrs | 53.6 |
| Mine Site | Former Mine | El Paso County | — | — | 4.3 yrs | 53.5 |
| Mine Site | Former Mine | Adams County | — | — | 3.5 yrs | 53.4 |
| Mine Site | Former Mine | El Paso County | — | — | 4.3 yrs | 53.3 |
| Mine Site | Former Mine | El Paso County | — | — | 4.3 yrs | 53.3 |
| Mine Site | Former Mine | Adams County | — | — | 4.3 yrs | 53.2 |
| Mine Site | Former Mine | Adams County | — | — | 4.3 yrs | 53.2 |
| Mine Site | Former Mine | Adams County | — | — | 4.3 yrs | 53.1 |
| Mine Site | Former Mine | El Paso County | — | — | 4.3 yrs | 53.0 |
| Mine Site | Former Mine | Adams County | — | — | 4.3 yrs | 53.0 |
| Mine Site | Former Mine | Weld County | — | — | 4.3 yrs | 52.9 |
| Mine Site | Former Mine | Weld County | — | — | 4.3 yrs | 52.9 |
| Mine Site | Former Mine | Weld County | — | — | 4.3 yrs | 52.9 |
| Mine Site | Former Mine | Weld County | — | — | 4.3 yrs | 52.9 |
| Mine Site | Former Mine | Adams County | — | — | 4.3 yrs | 52.8 |
| Mine Site | Former Mine | Adams County | — | — | 4.3 yrs | 52.8 |
| Mine Site | Former Mine | Douglas County | — | — | 3.5 yrs | 52.8 |
| Mine Site | Former Mine | Adams County | — | — | 4.3 yrs | 52.7 |
| Mine Site | Former Mine | Weld County | — | — | 4.3 yrs | 52.6 |
| Mine Site | Former Mine | Adams County | — | — | 4.3 yrs | 52.6 |
How does Colorado compare with other states for former mine sites?
With 471 sites, Colorado ranks 10th of the 50 states that have any former mine candidate sites. Kentucky leads with 5,049. Nationally, former mine sites average 49.7/100 DC Readiness, below the 53.0 average across all site types. Across every site type, Colorado averages 50.6, the 45th-highest of 52 states, and its candidate sites face an average interconnection-queue wait of 4.0 years.
Where are the highest-scoring former mine sites in Colorado?
The top 25 range from 54.9 to 52.6 on the 0–100 DC Readiness Score. They are concentrated in El Paso County (9), Adams County (9) and Weld County (5). By grid region, 21 are in SPP and 4 are in WECC.
County pages: El Paso County · Adams County · Weld County · Denver County
What power, fiber and flood exposure do these former mine sites have?
Their counties have a median of 15 fixed fiber broadband providers in FCC data. The median distance to the nearest internet exchange facility is 11 km. The median interconnection-queue wait in their markets is 4.3 years. None of the 1 with a mapped FEMA flood zone sits in a high-risk (A or V) zone.
Frequently asked questions
How many former mine datacenter sites are in Colorado?
GridCensus catalogs 471 former mine datacenter candidate sites in Colorado, 2% of the national total for this type (10th of 50 states).
What is a former mine datacenter site?
Decommissioned or active mining land. Mine sites often retain heavy electrical service and water rights from prior operations, and many sit near coal-plant substations now freeing up grid capacity.
What is the best former mine datacenter site in Colorado?
By DC Readiness Score, Mine Site in El Paso County ranks first at 54.9/100, followed by Mine Site in El Paso County at 54.7.
Which Colorado counties have the best former mine sites?
The top 25 former mine sites in Colorado are concentrated in El Paso County (9), Adams County (9) and Weld County (5).
How does Colorado score for datacenters overall?
All 3,428 scored sites in Colorado average 50.6/100 DC Readiness, the 45th-highest of 52 states, against a national average of 53.0.
More on former mine sites and Colorado
- All datacenter sites in Colorado· 3,428 sites
- Former Mine datacenter sites nationwide· 26,205 sites
- Federal Excess sites in Colorado· 911 sites
- Substation-Adjacent sites in Colorado· 899 sites
- Industrial sites in Colorado· 821 sites
- Greenfield sites in Colorado· 314 sites
- Brownfield sites in Colorado· 11 sites
Former Mine sites in other states
- Former Mine sites in Kentucky· 5,049 sites
- Former Mine sites in Pennsylvania· 3,356 sites
- Former Mine sites in West Virginia· 2,495 sites
- Former Mine sites in Virginia· 1,614 sites
- Former Mine sites in Alabama· 1,069 sites
- Former Mine sites in Texas· 935 sites
- Former Mine sites in Ohio· 925 sites
- Former Mine sites in Tennessee· 661 sites
Dataset updated . Screening estimates derived from public data sources.
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Former Mine datacenter sites in Colorado”, https://gridcensus.com/site-types/mine/colorado (data as of November 12, 2026).
Go deeper than the public screen
Every site and score for Former Mine sites in Colorado is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.