Mack - Canyonlands / Beechcraft Bonanza A36 (N744TL) / VFR

A relatively uneventful flight in darkness, VFR. The weather was just above minimums. I knew the terrain was mostly flat and relatively low between my departure and destination, but I nevertheless cut things too close, especially during the approach—I was only about 200 feet above terrain at some points, as I could see the trees even in the darkness. There was a hill just before the airport and I didn't spot it until the last moment because I was lower than I probably should have been. I knew I was high enough to clear terrain, but not by much. I'll have to be more careful.