{"id":39943,"date":"2026-06-05T19:00:30","date_gmt":"2026-06-05T19:00:30","guid":{"rendered":"https:\/\/www.karst.org\/?post_type=product&p=39943"},"modified":"2026-06-05T19:01:03","modified_gmt":"2026-06-05T19:01:03","slug":"medium-driving-under-the-influence-of-geology-ash-gray","status":"publish","type":"product","link":"https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/","title":{"rendered":"MEDIUM Driving Under the Influence … of Geology Ash Gray"},"content":{"rendered":"

After a brief sell-out, the Driving Under the Influence of Geology t-shirt is back, helping MAKC raise funds for cave conservation. The concept for the shirt came from caver-geologist Dave Field, who merely pointed out what many cavers have experienced\u2014the moment when something alongside the road causes the driver’s eyes to be drawn to roadside geology, the swerves and perhaps near-misses. Caver John Tudek executed the design in his unique style. These shirts and Hanes Beefy tees. This one’s in ash gray.<\/p>\n","protected":false},"excerpt":{"rendered":"

After a brief sell-out, the Driving Under the Influence of Geology t-shirt is back, helping MAKC raise funds for cave conservation. The concept for the shirt came from caver-geologist Dave Field, who merely pointed out what many cavers have experienced\u2014the moment when something alongside the road causes the driver’s eyes to be drawn to roadside geology, the swerves and perhaps near-misses. Caver John Tudek executed the design in his unique style. These shirts and Hanes Beefy tees. This one’s in ash gray<\/p>\n","protected":false},"featured_media":39921,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[52,57],"product_tag":[],"class_list":["post-39943","product","type-product","status-publish","has-post-thumbnail","product_cat-clothing","product_cat-t-shirts","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"\nMEDIUM Driving Under the Influence ... of Geology Ash Gray - Mid-Atlantic Karst Conservancy, Inc.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MEDIUM Driving Under the Influence ... of Geology Ash Gray - Mid-Atlantic Karst Conservancy, Inc.\" \/>\n<meta property=\"og:description\" content=\"After a brief sell-out, the Driving Under the Influence of Geology t-shirt is back, helping MAKC raise funds for cave conservation. The concept for the shirt came from caver-geologist Dave Field, who merely pointed out what many cavers have experienced\u2014the moment when something alongside the road causes the driver's eyes to be drawn to roadside geology, the swerves and perhaps near-misses. Caver John Tudek executed the design in his unique style. These shirts and Hanes Beefy tees. This one's in ash gray\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/\" \/>\n<meta property=\"og:site_name\" content=\"Mid-Atlantic Karst Conservancy, Inc.\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-05T19:01:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.karst.org\/wp-content\/uploads\/2026\/06\/2026-05-27-20.04.08-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1920\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.karst.org\\\/index.php\\\/product\\\/medium-driving-under-the-influence-of-geology-ash-gray\\\/\",\"url\":\"https:\\\/\\\/www.karst.org\\\/index.php\\\/product\\\/medium-driving-under-the-influence-of-geology-ash-gray\\\/\",\"name\":\"MEDIUM Driving Under the Influence ... of Geology Ash Gray - Mid-Atlantic Karst Conservancy, Inc.\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.karst.org\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.karst.org\\\/index.php\\\/product\\\/medium-driving-under-the-influence-of-geology-ash-gray\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.karst.org\\\/index.php\\\/product\\\/medium-driving-under-the-influence-of-geology-ash-gray\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.karst.org\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/2026-05-27-20.04.08-scaled.jpg\",\"datePublished\":\"2026-06-05T19:00:30+00:00\",\"dateModified\":\"2026-06-05T19:01:03+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.karst.org\\\/index.php\\\/product\\\/medium-driving-under-the-influence-of-geology-ash-gray\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.karst.org\\\/index.php\\\/product\\\/medium-driving-under-the-influence-of-geology-ash-gray\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.karst.org\\\/index.php\\\/product\\\/medium-driving-under-the-influence-of-geology-ash-gray\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.karst.org\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/2026-05-27-20.04.08-scaled.jpg\",\"contentUrl\":\"https:\\\/\\\/www.karst.org\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/2026-05-27-20.04.08-scaled.jpg\",\"width\":2560,\"height\":1920},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.karst.org\\\/index.php\\\/product\\\/medium-driving-under-the-influence-of-geology-ash-gray\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.karst.org\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Store\",\"item\":\"https:\\\/\\\/www.karst.org\\\/index.php\\\/store\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"MEDIUM Driving Under the Influence … of Geology Ash Gray\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.karst.org\\\/#website\",\"url\":\"https:\\\/\\\/www.karst.org\\\/\",\"name\":\"Mid-Atlantic Karst Conservancy, Inc.\",\"description\":\"Preserving the Caves of Today for the Cavers of Tomorrow\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.karst.org\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.karst.org\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.karst.org\\\/#organization\",\"name\":\"Mid-Atlantic Karst Conservancy, Inc.\",\"url\":\"https:\\\/\\\/www.karst.org\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.karst.org\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.karst.org\\\/wp-content\\\/uploads\\\/2019\\\/05\\\/cropped-MAKC-Logo-300-pix-1.jpg\",\"contentUrl\":\"https:\\\/\\\/www.karst.org\\\/wp-content\\\/uploads\\\/2019\\\/05\\\/cropped-MAKC-Logo-300-pix-1.jpg\",\"width\":78,\"height\":45,\"caption\":\"Mid-Atlantic Karst Conservancy, Inc.\"},\"image\":{\"@id\":\"https:\\\/\\\/www.karst.org\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"MEDIUM Driving Under the Influence ... of Geology Ash Gray - Mid-Atlantic Karst Conservancy, Inc.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/","og_locale":"en_US","og_type":"article","og_title":"MEDIUM Driving Under the Influence ... of Geology Ash Gray - Mid-Atlantic Karst Conservancy, Inc.","og_description":"After a brief sell-out, the Driving Under the Influence of Geology t-shirt is back, helping MAKC raise funds for cave conservation. The concept for the shirt came from caver-geologist Dave Field, who merely pointed out what many cavers have experienced\u2014the moment when something alongside the road causes the driver's eyes to be drawn to roadside geology, the swerves and perhaps near-misses. Caver John Tudek executed the design in his unique style. These shirts and Hanes Beefy tees. This one's in ash gray","og_url":"https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/","og_site_name":"Mid-Atlantic Karst Conservancy, Inc.","article_modified_time":"2026-06-05T19:01:03+00:00","og_image":[{"width":2560,"height":1920,"url":"https:\/\/www.karst.org\/wp-content\/uploads\/2026\/06\/2026-05-27-20.04.08-scaled.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/","url":"https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/","name":"MEDIUM Driving Under the Influence ... of Geology Ash Gray - Mid-Atlantic Karst Conservancy, Inc.","isPartOf":{"@id":"https:\/\/www.karst.org\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/#primaryimage"},"image":{"@id":"https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/#primaryimage"},"thumbnailUrl":"https:\/\/www.karst.org\/wp-content\/uploads\/2026\/06\/2026-05-27-20.04.08-scaled.jpg","datePublished":"2026-06-05T19:00:30+00:00","dateModified":"2026-06-05T19:01:03+00:00","breadcrumb":{"@id":"https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/#primaryimage","url":"https:\/\/www.karst.org\/wp-content\/uploads\/2026\/06\/2026-05-27-20.04.08-scaled.jpg","contentUrl":"https:\/\/www.karst.org\/wp-content\/uploads\/2026\/06\/2026-05-27-20.04.08-scaled.jpg","width":2560,"height":1920},{"@type":"BreadcrumbList","@id":"https:\/\/www.karst.org\/index.php\/product\/medium-driving-under-the-influence-of-geology-ash-gray\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.karst.org\/"},{"@type":"ListItem","position":2,"name":"Store","item":"https:\/\/www.karst.org\/index.php\/store\/"},{"@type":"ListItem","position":3,"name":"MEDIUM Driving Under the Influence … of Geology Ash Gray"}]},{"@type":"WebSite","@id":"https:\/\/www.karst.org\/#website","url":"https:\/\/www.karst.org\/","name":"Mid-Atlantic Karst Conservancy, Inc.","description":"Preserving the Caves of Today for the Cavers of Tomorrow","publisher":{"@id":"https:\/\/www.karst.org\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.karst.org\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.karst.org\/#organization","name":"Mid-Atlantic Karst Conservancy, Inc.","url":"https:\/\/www.karst.org\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.karst.org\/#\/schema\/logo\/image\/","url":"https:\/\/www.karst.org\/wp-content\/uploads\/2019\/05\/cropped-MAKC-Logo-300-pix-1.jpg","contentUrl":"https:\/\/www.karst.org\/wp-content\/uploads\/2019\/05\/cropped-MAKC-Logo-300-pix-1.jpg","width":78,"height":45,"caption":"Mid-Atlantic Karst Conservancy, Inc."},"image":{"@id":"https:\/\/www.karst.org\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.karst.org\/index.php\/wp-json\/wp\/v2\/product\/39943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.karst.org\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.karst.org\/index.php\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/www.karst.org\/index.php\/wp-json\/wp\/v2\/product\/39943\/revisions"}],"predecessor-version":[{"id":39944,"href":"https:\/\/www.karst.org\/index.php\/wp-json\/wp\/v2\/product\/39943\/revisions\/39944"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.karst.org\/index.php\/wp-json\/wp\/v2\/media\/39921"}],"wp:attachment":[{"href":"https:\/\/www.karst.org\/index.php\/wp-json\/wp\/v2\/media?parent=39943"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.karst.org\/index.php\/wp-json\/wp\/v2\/product_brand?post=39943"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.karst.org\/index.php\/wp-json\/wp\/v2\/product_cat?post=39943"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.karst.org\/index.php\/wp-json\/wp\/v2\/product_tag?post=39943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}