through Lake Athabasca, around 400m east of the Alberta border |-valign="top" | ! scope="row" | United States | Montana Wyoming — from Utah — from Arizona — from |- | ! scope="row" | Mexico | Sonora — passing just west of Ciudad Obregón at |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Gulf of California | style="background:#b0e0e6;" | |- | ! scope="row" | Mexico | Baja California Sur |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Pacific Ocean | style="background:#b0e0e6;" | |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Southern Ocean | style="background:#b0e0e6;" | |- | ! scope="row" | Antarctica | Unclaimed territory — passing through the Walgreen Coast of Marie Byrd Land |- |} See also 109th meridian west 111th meridian west References w110 meridian west Borders of Nunavut Borders of the Northwest Territories Borders of Saskatchewan Borders of Alberta