{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.morvs.ai/api/v1/msha/by-controller?name=Mason%20County","controller":"Mason County","_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":"2026-10-31T04:29:42.323Z"},"count":3,"truncated":false,"mines":[{"mine_id":"4502462","mine_name":"Palmer Pit","coal_metal_ind":"M","mine_type":"Surface","mine_status":"Abandoned","state":"WA","county_name":"Mason","controller_name":"Mason County","operator_name":"Mason County Road Department","num_employees":null,"primary_canvass":"SandAndGravel","canonical_url":"https://api.morvs.ai/mine/4502462"},{"mine_id":"4502463","mine_name":"Central Shop Pit","coal_metal_ind":"M","mine_type":"Surface","mine_status":"Abandoned","state":"WA","county_name":"Mason","controller_name":"Mason County","operator_name":"Mason County Road Department","num_employees":null,"primary_canvass":"SandAndGravel","canonical_url":"https://api.morvs.ai/mine/4502463"},{"mine_id":"4502464","mine_name":"Lost Lake Pit","coal_metal_ind":"M","mine_type":"Surface","mine_status":"Abandoned","state":"WA","county_name":"Mason","controller_name":"Mason County","operator_name":"Mason County Road Department","num_employees":null,"primary_canvass":"SandAndGravel","canonical_url":"https://api.morvs.ai/mine/4502464"}]}