I found a couple of his essays on subjects in law online, but they were very specific and technical. Here's an article on the prudential use of the death penalty which is a bit more readable -- I also found book reviews saying that the book Theo recommended is very readable:
I think the best you can say is that Charles Rice is a leading proponent of natural law within the legal community and that his beliefs are in line with the Catholic Church when natural law is applied to matters of faith and morals.
If you want the "accepted view of natural law in the Catholic Church," I'd recommend you read Aquinas's parts of the Summa in regard to it.
"You have made us for Yourself, and our hearts are restless until they rest in You." St. Augustine of Hippo