{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.morvs.ai/api/v1/msha/by-controller?name=Keith%20A%20Steenwyk%3B%20Ken%20R%20Steenwyk","controller":"Keith A Steenwyk; Ken R Steenwyk","_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":"2026-10-06T20:48:15.933Z"},"count":1,"truncated":false,"mines":[{"mine_id":"2003566","mine_name":"Pease Ave. Pit","coal_metal_ind":"M","mine_type":"Surface","mine_status":"Intermittent","state":"MI","county_name":"Kent","controller_name":"Keith A Steenwyk; Ken R Steenwyk","operator_name":"Steenwyk and Sons, Excavating LLC","num_employees":4,"primary_canvass":"SandAndGravel","canonical_url":"https://api.morvs.ai/mine/2003566"}]}