During the provincial election of 2003, the Liberal Party of Ontario promised to terminate development on the moraine as part of its election campaign. Once elected, the party failed to deliver on that promise, as a development in the northern part of Richmond Hill consisting of over 6600 housing units continued. The government, in its attempt to halt other nearby developments, proposed the "North Pickering Land Exchange". Discussed as early as November 2001, it involved exchanging government-owned public lands in North Pickering for privately owned lands on the Oak Ridges Moraine in Richmond Hill and Uxbridge.