- ONTARIO
- It borders Minnesota and New York
- Neighbor of Minnesota, Michigan, and New York
- Its license plate reads "Yours to Discover"
- Windsor's home
- Where London is located
- Michigan's northern neighbor
- Part of HOMES
- Blue Jays' province
- Oswego's lake
- Home of Bruce Peninsula National Park
- Lake of the Woods is in its extreme southwestern corner
- It's between Manitoba and Quebec
- Locale of London and Windsor
- Canada's most populous province
- Canadian province
- Canadian province where Tecumseh was killed in 1813
- City east of Los Angeles
- Where to visit London
- Home of the Bruce Peninsula
- The Detroit River forms part of its border
- Toronto's province
- Rob Ford's province
- Province bordering four Great Lakes
- It borders five states
- One of HOMES
- Quebec neighbor
- Great Lakes province
- Great lake with the smallest surface area
- Most populous Canadian province
- New York neighbor
- Paul Anka's birthplace
- Easternmost Great Lake
- London's setting
- Michigan neighbor
- Where London is
- Hudson Bay province
- London's province
- Lake on the New York border
- Airport city east of Los Angeles
- London locale
- Province on four Great Lakes
- A Great Lake
- London's home
- Smallest Great Lake
- It's south of Detroit
- Where London and Stratford are
- Lake Simcoe site
- Detroit neighbor
- Upper Canada, today
- Where Ottawa is
- Thunder Bay locale
- Windsor's province
- Home to 100+ First Nations communities
- Where Alex Trebek was born
- Birthplace of five famous sisters.
- Province where "quints" were born.
- Toronto-governed Canadian province.
- Province touching four Great Lakes.
- Rochester's lake.
- Smallest of Great Lakes.
- Where Toronto is.
- Oswego's waterfront.
- Where Muskoka Lakes are.
- Toronto is its capital.
- Where Lake Simcoe is.
- Where Port Arthur is.
- Where the Dionne Quintuplets live.
- Where Beatrice Lillie hails from.
- Where Hamilton is.
- Lake for Rochester folks.
- Smallest of five.
- Toronto is on this lake.
- Part of the projected Seaway.
- Rochester's waterfront.
- Toronto's waterfront.
- Canadian city.
- Smallest of the Great Lakes.
- Lake
- Toronto's lake.
- Minnesota's neighbor.
- Lake to the Thousand Islands.
- Erie's neighbor.
- Neighbor of Minnesota.
- Border lake.
- Great Lake
- Province on Lake Huron
- Manitoba's neighbor
- Big lake
- Niagara's outlet
- Smallest of the HOMES group
- Easternmost of HOMES
- Locale of Lake Nipigon
- Least of the Great Lakes
- London site
- With 16-Across, Canadian speech
- Least great Great Lake
- Sackets Harbor's lake
- Superior neighbor
- London's location
- Smallest of HOMES
- Where Algonquin Park is
- California 500 race site
- Where the Dionne quintuplets were born
- Where the Dionne quints were born
- Home of Pukaskwa National Park
- Neighbor of four Great Lakes
- Its official bird is the great northern loon
- One side of the Detroit River
- Lake at one end of the Welland Canal
- It borders five U.S. states
- H*MES
- Locale of the Battle of Stoney Creek in the War of 1812
- It's superior to Superior
- Its postal codes start with K, L, M, N and P - but, oddly, not O
- Neighbor of New York
- Lake at one end of the Niagara River
- See 15-Down
- One of the Great Lakes
- Ottawa site
- Toronto site
- London is there
- Canadian province bordering the Great Lakes
- Lake that can be seen from the CN Tower
- The Heartland Province
- Toronto locale
- Ottawa's province
- HOMES part
- Province by four Great Lakes
- Province that borders four Great Lakes
- Thunder Bay's province
- Canadian province that borders the Great Lakes
- Neighbor of New York and Minnesota
- Neighbor of Minnesota and New York
- Its coat of arms features a bear, a deer and a moose
- Site of London, Cambridge and Windsor
- Its coat of arms includes a bear, a moose and a deer
- London setting
- Site of Waterloo and London
- London location
- Its Golden Horseshoe lies along the shoreline of its namesake lake
- Lake fed by the Niagara
- Lake north of Rochester
