Yes Bert, in looking at my nautical map I'd say that round jobber is the current marker. My Seaway Trail book says that the light was replaced by a nearby skeletal tower but the NPS site says, "Replaced by offshore skeletal buoy 1941."

Paul, the distance from the Canadian side is roughly twice that as from the American. You want more views I'd just take these.

http://www.rudyalicelighthouse.net/OntLts/CrossIs/CrossIs.htm

http://www.lanternroom.com/lighthouses/ontario/ont07.htm

http://www.welovelighthouses.com/_borders/crossovr.jpg

http://www.uscg.mil/hq/g-cp/history/WEBLIGHTHOUSES/crossoverisland.JPG