{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.morvs.ai/api/v1/msha/by-controller?name=St%20John%20C%20F","controller":"St John C F","_source":{"data_provider":"AI Analytics","brand_name":"MORVS","brand_url":"https://morvs.ai/","data_provider_url":"https://api.morvs.ai","license":"https://creativecommons.org/publicdomain/zero/1.0/","primary_source":"https://arlweb.msha.gov/OpenGovernmentData/OGIMSHA.asp","generated_at":"2026-11-03T11:46:04.402Z"},"count":1,"truncated":false,"mines":[{"mine_id":"5000703","mine_name":"Sand Lake Pit & Mill","coal_metal_ind":"M","mine_type":"Surface","mine_status":"Abandoned","state":"AK","county_name":"Cook Inlet Susitna","controller_name":"St John C F","operator_name":"Sand Lake Aggregate Inc","num_employees":null,"primary_canvass":"SandAndGravel","canonical_url":"https://api.morvs.ai/mine/5000703"}]}