{"@context":{"@vocab":"https://schema.org/"},"@type":"ItemList","@id":"https://api.morvs.ai/api/v1/msha/by-controller?name=Preussers%20Sand%20%26%20Gravel","controller":"Preussers Sand & Gravel","_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":"2026-10-05T22:43:55.501Z"},"count":1,"truncated":false,"mines":[{"mine_id":"2100619","mine_name":"Preussers Sand And Gravel Pit","coal_metal_ind":"M","mine_type":"Surface","mine_status":"Abandoned","state":"MN","county_name":"Sherburne","controller_name":"Preussers Sand & Gravel","operator_name":"Preussers Sand & Gravel","num_employees":null,"primary_canvass":"SandAndGravel","canonical_url":"https://api.morvs.ai/mine/2100619"}]}