How many mining fatalities did MSHA record each year from 2020 through 2025?
2020: 29. 2021: 38. 2022: 30. 2023: 40. 2024: 28. 2025: 33. National totals across coal and metal/nonmetal mining, mine operator and contractor employees together.
MSHA safety data and the mining engineering handbooks, inside Claude, ChatGPT or Cursor. Every answer shows its source.
Connect URL
https://mcp.bigdogmining.com/mcp
Paste it into your AI app as a custom connector. How, step by step.

What is in it
What you can ask
We asked these in Claude with the connector on, November 6, 2026. The answers below are what came back, trimmed for length.
How many mining fatalities did MSHA record each year from 2020 through 2025?
2020: 29. 2021: 38. 2022: 30. 2023: 40. 2024: 28. 2025: 33. National totals across coal and metal/nonmetal mining, mine operator and contractor employees together.
Find fatal incidents where a miner was caught in a conveyor belt while cleaning spillage.
Close matches came back with MSHA's own narratives, among them Hazleton Shaft, Pennsylvania, July 25, 2024, and West Elk Mine, Colorado, August 11, 2024. The pattern across them: the belt moved while someone was cleaning it.
What rolling resistance should I use for a haul road?
It depends on the surface. Gravel, well compacted, dry: 2.0%. Gravel, loose: 10.0%. Dirt, deeply rutted: 16.0%, as equivalent percent haul road grade. The answer quotes the table and names the page.
Chart MSHA mining fatalities by year, 2015 through 2025.

Answers come from public data and published references. They are research aids, not engineering designs: decisions on a live operation belong to the competent person on site.
Connect it
You need the connect URL and a work email. Sign-up is free: we email you a 6-digit code, you press Approve, and you are in. Signing up also adds you to The Pulse, our mining newsletter. One click unsubscribes, and the tools stay free either way.
On claude.ai or the Claude desktop app. These are screenshots from a real sign-up.
In Claude, open Customize in the sidebar (or Settings, then Customize). On the Connectors tab, press Add and pick Add custom connector.

Name: Big Dog Mining. URL: https://mcp.bigdogmining.com/mcp. Press Continue.

Claude detects the sign-in on its own: Sign in now is already picked. Nothing else to set.

Big Dog Mining now shows in your connectors. Press Connect to sign in.

Tick the box and press Email me a code. The code comes from Big Dog Mining within a minute. Check spam if it does not.

It works for 15 minutes. Lost it? Press Send a new code.

The page lists what Claude can do with it. It is read only: it sees nothing of yours and changes nothing. You land back in Claude.

All ten tools are read only. Set Read-only tools to Always allow and Claude will not stop to ask before each one.

Start a new chat and ask in plain words. Saying "using the Big Dog Mining connector" helps Claude pick it the first time.

Custom connectors depend on your ChatGPT plan and settings. Menu names change between releases; look for these.
https://mcp.bigdogmining.com/mcp. Authentication: OAuth.For engineers who live in an editor.
~/.cursor/mcp.json by hand.{
"mcpServers": {
"big-dog-mining": {
"url": "https://mcp.bigdogmining.com/mcp"
}
}
}
Any other app that supports remote MCP servers with sign-in works the same way: paste the URL, then sign in with your email.
Want the same thing on your own documents?
Procedures, contracts, ground support plans and past reports, searchable by asking, in your own cloud. Every answer shows the page it came from.