{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.morvs.ai/api/v1/msha/by-controller?name=C.%20Reiss%20Holdings%2C%20LLC","controller":"C. Reiss Holdings, LLC","_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":"2026-10-04T12:18:25.154Z"},"count":1,"truncated":false,"mines":[{"mine_id":"4703816","mine_name":"Readfield","coal_metal_ind":"M","mine_type":"Surface","mine_status":"Abandoned","state":"WI","county_name":"Waupaca","controller_name":"C. Reiss Holdings, LLC","operator_name":"Whitehaven Silica, LLC.","num_employees":0,"primary_canvass":"Stone","canonical_url":"https://api.morvs.ai/mine/4703816"}]}