Other than the contacting them by mail part , which I've never had much luck with , that's pretty much how I've gained access to private land over the years . I'll vouch for it's success , I have more totally free places to hunt than I can use , and I still get offered new ones almost every year .

A quick check with your fish and wildlife department may reveal that your state's laws may already indemnify the landowner for allowing access , mine does and even has a downloadable form somewhere on their website that you can print and take with you . Nothing calms an uneasy landowner faster than the comforting knowledge that he need not fear legal repercussions in case of accidents , having it on an official form seems to be especially persuasive .