The Amendment is just above Boulder Falls 50 feet from the waters edge and 75-100 yards from the falls. The problem traverses into an existing boulder problems called Freedom. Start on the left side of the boulder and traverse on bad slopers into Freedom. Finish Freedom. Freedom is rated V10, with the Amendment being more difficult, so the 10/11 grade is given. Maybe easier, may be harder than 10/11.
More specific beta for locating the boulder. On the hike up to the Plotinus Wall (Lower Boulder Falls), there's a sizeable boulder at the base of the talus, just west of the creek with an obvious cave, facing south. Start in the middle of the roof and slap the lip, struggle over. For the V11 start, use Dan's directions.