Contact Us Office Phone Number 503-725-9950 Staff Directory Staff profiles and contact information is available from the INR Staff Directory. Follow us Facebook Instagram Street Address SEC Suite 140 2118 SW 5th Ave. Portland, OR 97201-4908 Download PDF map and directions. Mailing Address Portland State University Institute for Natural Resources / INR PO Box 751 Portland, OR 97207-0751 The INR-Portland office is generally open from 8:30 am to 4:30 pm Monday through Friday. You can contact us using the methods above or use this web form to submit your query. Name indicates required First Name Last Name Email Subject Message CAPTCHA This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.