I hunt some land where the deer pop. is very low, but its a great bunch of guys so I always return for the opening week. In Ontario you get one antlered tag when you buy your lisence, its a lottery system to see if you can use it for antlerless. Besides sightings and sign a sure way to know if you are in a good area is by how easy it is to get an antlerless tag, good areas have a 100% success rate, poor areas its tough to get them.
Bottom line is I've hunted there with twelve guys and 2 doe tags between us, if we didn't push the bush we'd probably take home less than 1/2 the meat we usually do, and as it is we have many unused tags every year.