What this coin looks like (obverse, reverse, mint mark location, special features, etc.):
"Apostle Islands National Lakeshore - Wisconsin"
The 2018-S Reverse Proof Apostle Islands Quarter is part of a special set of coins to commemorate the 50th anniversary of the San Francisco Mint's production of Proof coinage.
Coin valuation chart: Typical coin prices, values and worth per grade or condition - in USD