Divorce/Dissolution cases are public record.You were specific in asking for an "actual physical lookup."If you know the names of the parties involved and at least the year time-frame, you can do it by mail as identified below.A person going to the court would have the same ability to find the record as you do by mail.If you do not know the time-frame, they would have to do a search, just like a person visiting the court.
I tried to find a person "likely" to be able to go to the court for you.The Random Acts of Genealogical Kindness has a volunteer, Sandra, that does "Public Records (library)."Usually that means just the library for obituaries (microfilm) or other local information.She "might" do a court record at least to obtain dates or verify there is one.READ the guidelines before contact: http://www.raogk.org/oregon2.htmhttp://www.raogk.org/oregon2.htm
As far as the record, it would be a Civil Case, usually in a "Family" court in most States.The case title would be "Name, Petitioner, versus Name, Respondent.Then followed by Petition for Dissolution of Marriage or similar wording."Most" courts have some method of quickly finding cases.If it is recent, it may be digitalized (computer).If it is much older, then it might be identified in large red books by the case name, date of petition filing, or by case number.Then it would be a matter of pulling the case from archives and copying.There may be dozens of different filings, attorney change/unavailability, witness depositions, legal findings, financial records (usually not public), court records concerning children and recommended status of the children, etc.So, it could get very expensive if you want a copy of it all.Whenever I obtain a dissolution case for documentation purposes, I only get the original Petition (sometimes the amended one), any protection orders, the final dissolution decree and any child care/payments documents.Your purpose might be to just identify if a family member was divorced, then just the final dissolution would be enough, that would usually identify the children.
Finding the record.Just because the parties may have married in a county, the divorce record might not be there.It can be found whereever the one party filed the Petition.Some Counties/States require that person to be a citizen of that County, others do not.So, it might be found ANYWHERE the Petitioner had lived or had filed.