{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.morvs.ai/api/v1/msha/by-controller?name=Progress%20Quarries%20Inc","controller":"Progress Quarries Inc","_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":"2026-11-02T07:31:57.332Z"},"count":1,"truncated":false,"mines":[{"mine_id":"3502909","mine_name":"Murry Pit","coal_metal_ind":"M","mine_type":"Surface","mine_status":"Abandoned","state":"OR","county_name":"Washington","controller_name":"Progress Quarries Inc","operator_name":"Progress Quarries Inc","num_employees":null,"primary_canvass":"Stone","canonical_url":"https://api.morvs.ai/mine/3502909"}]}