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Real world geology: Greyhawk
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<blockquote data-quote="haakon1" data-source="post: 3571260" data-attributes="member: 25619"><p>It seems perfectly possible to me.</p><p></p><p>When I spent a summer at Yellowstone National Park, I was pretty excited about the Great Divide -- one side flows to the Pacific (via the mighty Columbia River basin), the other side to the Atlantic (via the Missouri/Mississippi basin to the Gulf of Mexico).</p><p></p><p>You'd think the Great Divide would always be at the peak of a mountain, but this is not always so -- at one point, I crossed it on a road. And stopped to take a picture of the sign. And noticed a large puddle of rainwater near the sign. With one two inch wide (5 cm) streamlet leading downhill one direction, and another flowing the other direction. If a 5' wide rainwater puddle can flow into two different ocean's, and I observed for myself that it can, than I have no problem with the Nyr Dyv's geography.</p><p></p><p>Lake Yellowstone itself has two outlets -- the Yellowstone River to the north and the Shoshone River to the east. These meet about 120 miles away, but still, it's a good example that lakes can and do have multiple outlets. If only there was a mountain somewhere along there to turn the Yellowstone River from north to NW instead of NE, Lake Yellowstone would drain into both oceans.</p><p></p><p>And of course, as Utahans know, not every water course ever does reach the ocean.</p><p></p><p>As for the claims that the Nyr Dyv must be unnatural/magical/connected to the Elemental Plane of Water, that's not necessary to explain its existence. It has two outlets, but it has 3 HUGE inlets:</p><p>-- The Velverdyva/Fals/Att basin. This massive river basin drains most of Dramidj's rainfall, from the gap of Bissel at the Bramblewood Forest north up the Yatil Mountains and all the way up to the Land of Black Ice -- for Lake Quag's outlet is the Velverdyva. Basically, something close to half the rain in the western side of the Flanaess flows through Dyvers into the Nyr Dyv.</p><p>-- The Veng/Ritensa/Crystal basin. This river basin drains Whyestil Lake (itself fed by 5 rivers draining Iuz's realm and the Cold Marshes).</p><p>-- The Artonsamay/Cold/Zumker basin, which edges up the western side of the Rakers and drains the Troll Fens and the Fellreev Forest.</p><p></p><p>A WHOLE LOT of water is flowing in there naturally, from the Yatils to the Rakers.</p></blockquote><p></p>
[QUOTE="haakon1, post: 3571260, member: 25619"] It seems perfectly possible to me. When I spent a summer at Yellowstone National Park, I was pretty excited about the Great Divide -- one side flows to the Pacific (via the mighty Columbia River basin), the other side to the Atlantic (via the Missouri/Mississippi basin to the Gulf of Mexico). You'd think the Great Divide would always be at the peak of a mountain, but this is not always so -- at one point, I crossed it on a road. And stopped to take a picture of the sign. And noticed a large puddle of rainwater near the sign. With one two inch wide (5 cm) streamlet leading downhill one direction, and another flowing the other direction. If a 5' wide rainwater puddle can flow into two different ocean's, and I observed for myself that it can, than I have no problem with the Nyr Dyv's geography. Lake Yellowstone itself has two outlets -- the Yellowstone River to the north and the Shoshone River to the east. These meet about 120 miles away, but still, it's a good example that lakes can and do have multiple outlets. If only there was a mountain somewhere along there to turn the Yellowstone River from north to NW instead of NE, Lake Yellowstone would drain into both oceans. And of course, as Utahans know, not every water course ever does reach the ocean. As for the claims that the Nyr Dyv must be unnatural/magical/connected to the Elemental Plane of Water, that's not necessary to explain its existence. It has two outlets, but it has 3 HUGE inlets: -- The Velverdyva/Fals/Att basin. This massive river basin drains most of Dramidj's rainfall, from the gap of Bissel at the Bramblewood Forest north up the Yatil Mountains and all the way up to the Land of Black Ice -- for Lake Quag's outlet is the Velverdyva. Basically, something close to half the rain in the western side of the Flanaess flows through Dyvers into the Nyr Dyv. -- The Veng/Ritensa/Crystal basin. This river basin drains Whyestil Lake (itself fed by 5 rivers draining Iuz's realm and the Cold Marshes). -- The Artonsamay/Cold/Zumker basin, which edges up the western side of the Rakers and drains the Troll Fens and the Fellreev Forest. A WHOLE LOT of water is flowing in there naturally, from the Yatils to the Rakers. [/QUOTE]
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