The jeep road definitely goes through (as of November, 2011) and bypasses the gate. Follow this 2-3 miles to find the TH. You pass a few branches (continue taking the left route) and an old tank before finding a few fire rings and a cairn where the trail starts up a drainage.
"As an adolescent I aspired to lasting fame, I craved factual certainty, and I thirsted for a meaningful vision of human life - so I became a scientist. This is like becoming an archbishop so you can meet girls."