Summit County This is the process for Ivory Homes to rezone and develop Garff-Rogers ranchland in Browns Canyon. Residents are expected to weigh in on a proposal to bring thousands of homes to the mostly rural and industrial Browns Canyon Aug. 6. Most of Browns Canyon is zoned for one home per 80 acres. I could talk water and go through the math and everything else on water,” Darcey said at a June meeting with Ivory Homes. Ivory representatives have expressed a willingness to mandate drip irrigation instead of sprinklers in Browns Canyon and to explicitly ban golf courses.