.When you get to Citra, FL you'll be at the South end of Orange. If you turn West at the only light in Citra that will take you over to Hwy. 441. Turn North on 441 and you'll run into McIntosh, FL. Sportsmen's Cove Fish Camp is just off 441 in McIntosh, and is very airboat friendly.
If you stay on Hwy. 301 past Citra, the next road West will be for Cross Creek. Take that road West and you'll run up on Marjorie Rawlings State Park. Good ramps and parking and you'll be on the North end of Orange.
If you continue on 301 past those two turnoffs you'll soon see Lockloosa on your left. There are a couple of public ramps right along the Hwy. there.