“A trail that provides uphill access to the upper trails of Jumbo Mountain Trail System.”
— Dave Reed
From Powerline Rd
, continue straight uphill to use this nicely graded trail to ascend the outer loop of Jumbo. You'll top out at the Grassy Knoll where you'll have the option to descend the Ridge of Doom
or continue up onto Jumbo Ridge
and continue on the outer loop.