{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.ai-analytics.org/api/v1/msha/by-controller?name=Hilde%20David%20W","controller":"Hilde David W","_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":"2026-09-22T15:40:37.215Z"},"count":2,"truncated":false,"mines":[{"mine_id":"2401421","mine_name":"Hilde Portable Crusher #1","coal_metal_ind":"M","mine_type":"Surface","mine_status":"Abandoned","state":"MT","county_name":"Cascade","controller_name":"Hilde David W","operator_name":"Hilde Construction Company Inc","num_employees":null,"primary_canvass":"SandAndGravel","canonical_url":"https://api.ai-analytics.org/mine/2401421"},{"mine_id":"2401503","mine_name":"Hilde Wash Plant","coal_metal_ind":"M","mine_type":"Surface","mine_status":"Abandoned","state":"MT","county_name":"Cascade","controller_name":"Hilde David W","operator_name":"Hilde Construction Company Inc","num_employees":null,"primary_canvass":"SandAndGravel","canonical_url":"https://api.ai-analytics.org/mine/2401503"}]}