First, you need to find the height of the trailer's tongue when the trailer is level. Set up the trailer on flat pavement. Run the tongue jack up and down or prop it up on some scrap lumber until it's level. You can determine this by placing a carpenter's level on the tongue or by eyeballing the trailer from the side from a distance of about 50 feet. Measure from the ground to the top of the ball socket. Park the vehicle you'll use to tow the trailer on level ground too.
Two years ago, the Truckee-Donner Land Trust purchased the Summit Canyon area at the foot of the pass so that now the entire pass area is open space. The Old Lincoln Highway trail is now a great hike that winds down through the historic Donner Pass area.wo years ago, the Truckee-Donner Land Trust purchased the Summit Canyon area at the foot of the pass so that now the entire pass area is open space. The Old Lincoln Highway trail is now a great hike that winds down through the historic Donner Pass area.
The new museum is expected to open in late 2014. Expand Photo Margaret Moran / Sierra Sun |. When it opens this spring, the new Donner Memorial State Park museum will feature exhibits on the Donner Party, regional Native American history and history of railroad development through Donner Pass.elated Media. TRUCKEE, Calif. â Opening of the new Donner Memorial State Park museum has been delayed again. The approximately 10,000-square-foot building should open in summer or fall 2014 âbarring any unforeseen circumstances,â said Vicky Waters, deputy director of public affairs for California State Parks.