ClonaKilty
Member
Here in San Diego, the NRA sponsers an annual cleanup of all the shooting areas in the Cleveland National Forest. They provide soda and water, you provide the labor. Might be a good idea to do a similar thing at your range.
I would add that any cleanup you do, be sure to get full brownie points for it by letting the "powers that be" know you did this. Who oversees the land -- Rangers, BLM? Invite them to your cleanup day. If they don't come, mail them a positive, upbeat letter with photos of your cleanup day. Be sure the "top dog" gets a copy.
Attend their public functions. Be the one who shows up smiling and supportive of them, and make the greens look like the PITAs they are. Volunteer for them if they have any other functions going on. Get to know the real decision makers, and befriend them...invite them to come out & shoot with you!
Oh, and on your cleanup day, bring donuts -- I am serious, you will get tons of people turning up.
I shoot at an outdoor public range in Northern CA (near SF), very near mtn bike and hiking trails. We are very very cautious to make good friends with the regional parks directors. And we win out whenever the greens start to whine about our shooting.