Hal Holmes Center Share: Conference & Retreat CentersBanquet or Meeting Facility Hal Holmes Center Visit Website Request Info 209 N Ruby St Ellensburg, WA 98926 (509) 962-7240 (509) 962-7114 (fax) Hours: Monday - Friday 8:00am to 2:00pm About Map About A multipurpose conference center located in Ellensburg, the heart of Washington State; offering a comfortable and professionally managed space for meetings, recitals, receptions, and community events. What's Nearby? Distance: 5 10 15 20 25 50 mi.