Hike up a steep portion of Angel Kerley Road for 0.5 miles.
Variation 1 - "Scenic Route": Go left up Burma Road. Turn right (uphill) onto Deer Flat Road after 1 mile. Continue up Long RIdge, which turns into Moses Rock Ridge, for another mile. Here you'll meet Mothers Trail, which is the more direct route.
Variation 2 - "Direct Route": Continue up Angel Kerley Trail for 0.3 miles. Turn left (uphill) onto Mothers Trail and climb 900 feet over 0.7 miles until the intersection with Deer Flat Road.
Continue along Deer Flat Road for another 1.5 miles. The end of the trail is paved, as it passes through a campground. Just before reaching the main road (Summit Road), follow signs to the Juniper Trail, at the Laurel Nook Group Picnic Area.
Follow the Juniper Trail for another mile, crossing Summit Road once, to trails end at the lower summit parking lot. Follow the obvious path to the summit proper for another 1/2 mile.
Burma Road variation summary: 5.6 miles, +3070 feet, -400 feet. Mothers Trail variation summary: 4.4 miles, +2980 feet, -300 feet.
TOPO! GPS Data Format DegMin NAD83 ElevFeet UTC-Time DFLATBURMA,37,53.202,-121,57.628,1545,04/27/2003,15:50:38,BURMA ROAD MEETS DEER FLAT ROAD ANGBURM,37,52.516,-121,57.280,1461,04/27/2003,15:51:45,ANGEL KERLEY TRAIL & BURMA ROAD ANGMOTH,37,52.645,-121,56.974,1720,04/27/2003,15:52:28,ANGEL KERLEY ROAD & MOTHERS TR DFLATMOTH,37,52.947,-121,56.859,2279,04/27/2003,15:53:01,DEER FLAT RD & MOTHERS TRAIL DFLATJUNI,37,52.639,-121,55.843,2957,04/27/2003,15:53:45,DEER FLAT RD & JUNIPER TR JUNIPLOT,37,52.759,-121,55.215,3650,04/27/2003,15:54:09,JUNIPER TR & SOUTH PARKING LOT SUMMIT,37,52.897,-121,54.864,3810,04/27/2003,15:54:38,MT DIABLO SUMMIT