Check the listing for details. Berlin Ichthyosaur State Park Nevada Hiking & Adventure Guide Waterproof Map. Condition: New. Listed at 9.99 USD. This detailed guide was developed in association with the Park. Berlin-Ichthyosaur is home to North America's largest concentration of Ichthyosaur (large marine reptiles) remains, and the historic ghost town of Berlin and Union, Nevada.Side 1 features a trail map of the park along with photos and text describing points of interest.Side 2 has historical notes about Berlin and vintage photos plus charts of features in the town.The map is 18.5" x 26", printed two sides, folded to a handy 4" x 9" and printed on waterproof, tear-resistant material.