{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.morvs.ai/api/v1/msha/by-controller?name=Harner%20Leonard%20L--Richard%20Williamson","controller":"Harner Leonard L--Richard Williamson","_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":"2026-10-04T11:56:50.305Z"},"count":1,"truncated":false,"mines":[{"mine_id":"3607780","mine_name":"Little Diamond Slope","coal_metal_ind":"C","mine_type":"Underground","mine_status":"Abandoned and Sealed","state":"PA","county_name":"Schuylkill","controller_name":"Harner Leonard L--Richard Williamson","operator_name":"South Ridge Coal Company","num_employees":0,"primary_canvass":"Coal","canonical_url":"https://api.morvs.ai/mine/3607780"}]}