{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.ai-analytics.org/api/v1/msha/by-controller?name=NASCO%20Corp","controller":"NASCO Corp","_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":"2026-09-09T13:14:44.275Z"},"count":1,"truncated":false,"mines":[{"mine_id":"4300201","mine_name":"North Poultney","coal_metal_ind":"M","mine_type":"Surface","mine_status":"Abandoned","state":"VT","county_name":"Rutland","controller_name":"NASCO Corp","operator_name":"NASCO Slate LLC","num_employees":0,"primary_canvass":"Stone","canonical_url":"https://api.ai-analytics.org/mine/4300201"}]}