Originally Posted by JohnBurke

Your sentence is not very clear, however, according to the article under discussion:

"A Skywest Canadair CRJ-900 on behalf of Delta Airlines, registration N162PQ performing flight OO-3567/DL-3567 from Salt Lake City,UT to Medford,OR (USA), was on approach to Medford's runway 32 cleared for the VOR/DME C via the arc approach with the additional instruction "cross CEGAN at or above 7800 feet". "

ATC cleared the flight to begin the arc "at or above 7,800." The arc begins at CEGAN.

The crew descended to the altitude in the clearance, which was the MVA, and had a GPWS terrain warning, to which they responded, hence the article.