{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.ai-analytics.org/api/v1/msha/by-controller?name=Mariana%20Copper%20LLC","controller":"Mariana Copper LLC","_source":{"data_provider":"AI Analytics","data_provider_url":"https://api.ai-analytics.org","license":"https://creativecommons.org/publicdomain/zero/1.0/","primary_source":"https://arlweb.msha.gov/OpenGovernmentData/OGIMSHA.asp","generated_at":"2026-08-22T21:07:46.755Z"},"count":1,"truncated":false,"mines":[{"mine_id":"4202406","mine_name":"Lisbon Valley Mining Co ","coal_metal_ind":"M","mine_type":"Surface","mine_status":"Active","state":"UT","county_name":"San Juan","controller_name":"Mariana Copper LLC","operator_name":"Mariana Copper One","num_employees":60,"primary_canvass":"Metal","canonical_url":"https://api.ai-analytics.org/mine/4202406"}]}