Structured for AI

{  "@context": "https://schema.org",  "@type": "Campground",  "@id": "https://campertunity.com/listings/campgrounds/rec-10277127",  "name": "Marble Mountain Group Picnic Site",  "description": "Overview\n\nMarble Mountain Group Picnic Site is on the Gifford Pinchot National Forest and is located at the Marble Mountain SnoPark on the south side of Mount St. Helens. A part of the WA State Sno-Park program in the winter months, Marble Mountain Group Picnic Site is offered as a day use group picnic area Saturdays only, May - September. (The site may be available for reservation as early as April or as late as June depending on conditions, i.e., whether there is snow on the ground or not)....",  "url": "https://campertunity.com/listings/campgrounds/rec-10277127",  "image": [    "https://cdn.recreation.gov/public/2025/12/08/22/30/10277127_a63fc891-894b-406c-a5bc-70010faf7918_700.jpg",    "https://cdn.recreation.gov/public/2025/03/28/21/09/10277127_3cc4a35c-c9f7-4e9c-8325-c5a5ced718a1_700.webp",    "https://cdn.recreation.gov/public/2025/12/08/22/30/10277127_a3005bb8-2b37-4d7d-83d9-9df02b98840b_700.jpg",    "https://cdn.recreation.gov/public/2025/12/08/22/31/10277127_5a64cdca-980d-4ff9-babe-c482566269f4_1440.jpg",    "https://cdn.recreation.gov/public/2025/12/08/22/28/10277127_56418467-3457-4226-9fe7-02a8c7f2e052_700.jpg"  ],  "address": {    "@type": "PostalAddress",    "streetAddress": "Skamania County, WA, USA",    "postalCode": "",    "addressCountry": "US"  },  "geo": {    "@type": "GeoCoordinates",    "latitude": 46.130678,    "longitude": -122.16982  },  "sameAs": [    "https://www.recreation.gov/camping/campgrounds/10277127"  ],  "numberOfRooms": 1,  "amenityFeature": [    {      "@type": "LocationFeatureSpecification",      "name": "Biking"    },    {      "@type": "LocationFeatureSpecification",      "name": "Hiking"    }  ]}