You may be able to park in one of the parking lots in L5P. You may want to ask one of the merchants first to make sure your car isn't towed.
When are you planning to ride? I pick up the trail between Decatur and Tucker and ride out to SM several times a week.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.