Montana opal mine. Red Rock Mine and Garnet ERY – 2045 MT-287, Sheridan, MT 59749, United States. May 22nd – September 7th. Apr 22, 2024 · 45. Opal digging is a great family event, or just fun on your own. 312950, -107. Most of the production has been from small mining operations and open cuts worked by two or three people. Produced nearly 14 million years ago when volcanic About 15-miles after the Idaho/Montana border, is the town of Spencer, featuring the Spencer’s Opal Mine, the Opal Capital of America. The mine also includes Crystal Ridge RV Park with 24 shaded sites, $25 per night for full Opal. Montana. Nestled in northwestern Nevada nearest the tiny town of Denio, Bonanza Opal Mines are found within the storied Virgin Valley Opal area—a ruggedly remote location that is prized for its mysterious and rare Virgin Valley black fire opals, the official 2) it is a workout and its dirty. Open Wednesday – Saturday 9:30 am to 5:30pm. $50. Now, material from the mine is piled high behind the café. Opal tours, shops, and fossicking activities are some of the most eye-catching sights. Cooney's Sapphire Village Inc. Opal mining is done primarily by hand with tools such as an electric jackhammer, hammers and shovels. The Dillon Mine is a gold and silver mine located in Beaverhead county, Montana at an elevation of 7,500 feet. Unit price. Fee mining sites are places where you can pay a fee to dig for rocks, minerals, gold or gemstones and keep whatever you find. (775) 375-5955. Besides opal digging, the mine is surrounded by fantastic high-desert landscape and Jan 11, 2024 · Here are a few of our favorite places to find and buy opal in the area: Earthlight Minerals & Gifts – 6437 W Fairview Ave, Boise, ID 83704, United States. AB Jewelers – 2700 N Green Valley Pkwy h4, Henderson, NV 89014. Gem Mountain Sapphire Mine – Sapphire. The precious opal from this deposit is a beautiful blue-gray base color. 26º36’19. com T +1 866 459 4367 Dec 3, 2015 · These Opal Mines were located by the Department of Land Transfer Information in 2015 Jan 11, 2024 · The Best Places To Buy Opal. Geological Survey, 2005, Mineral Resources Data System: U. Opals are the second largest contributor to the total value of gem material produced here in Idaho and the Spencer The Spencer Opal Mines are located in South Eastern Idaho, 65 miles north of Idaho Falls on I-15, 70 miles west of Yellowstone National Park, and 80 miles south of Dillon Montana. The time it takes to get there is worth the fun you'll have digging for sapphires. Allow a minimum of an hour to reach the collecting area after you leave I-15. com Bonanza Opal Mines, Inc. 3835 Skalkaho Rd. This mine has produced very valuable stones, some worth Coober Pedy produces the bulk of the world’s white opal. (775) 941-0374. Unfortunately, the finding a opal experience is a little lack luster. Gem Mountain Sapphire Mine 2024 Season. The state Supreme Court reinstated a key permit for the proposed Black Butte Copper Project. Aug 22, 2022 · The appeal of these pretty gems wasn’t the reason Harry L. Colorful and unusual, opal is an eye-catching gem. Montana’s Largest, Oldest and Funnest Sapphire Mine. On Monday May 31st, 2010 we pulled up outside the Spencer Opal Cafe at about 9:15am. We offer several ways to experience opal mining in Virgin Valley; tailings digging and virgin ground loads. 154 likes. Phone# (406) 842-5760 : Montana. “At Bonanza, you can dig for opals amidst the rugged beauty of the Virgin Valley in northern Nevada. 4”E. You can find chromite, feldspar minerals, or beryl in the Casper Mountains. Alder, MT 59710. With all the examples and array of opals in various levels of display you can see what the possibilities are for your potential discoveries. Agate Mountain. 6). Coober Pedy boasts a rich history, stunning landscapes, and a way of life unlike anywhere else. Opal from Montana, USA. The Cafe at Spencer Opal Mines is located close to the mini mines. Claims may not be located in areas closed to mineral entry by a special act of Congress, regulation, or public land order. Opal is a hydrated amorphous form of silica (SiO 2 · n H 2 O); its water content may range from 3% to 21% by weight, but is usually between 6% and 10%. Closed Holidays. Opal has been found at many locations in Idaho, and mines there have produced it since the early 1900s. We offer a fee dig for those that want to mine their own opals. You can visit us at the Mine, open seasonally, on Highway 38. This collection is filled with silver jewelry that is studded with iridescent blue opals and There are a few places where you can find opals in Oregon. A high-clearance vehicle is recommended. Spencer Opal Mine Aug 9, 2023 · Parker Mountain Mines, Gravel Range Mining District: OWYHEE: DeLamar Mine on Florida Mountain near Silver City: OPAL - FIRE: CLARK: Spencer Opal Mine near Spencer (private - fee charged) GEM: Lava beds of Squaw Butte, Emmett area, and Black Canyon Dam: LATAH: 5 miles south of Forney on Opal Creek: OWYHEE Year Round (775) 969-3616 In Season (775) 941-0111 Email: info@bonanzaopals. Red Rock Mine & Garnet Gallery. The mine was discovered in 1948 by two deer hunters and filed as a mining claim in 1952. Opal Negra Mining – Another opal mine in the area, open to the general public to dig for your own Dec 8, 2012 · Spencer, Idaho, is a small town near the Montana border which owes its existence to the opal. "Calweld 150-H" by hitchster. Aug 19, 2016 · New Production Gallery. They’re very hard to remove from the host stone, so people got creative. Bring "work clothes" that you'd wear if you were working, cause your going to be covered in sweat and dust afterward. Phone: 208-374-5476. Due to its amorphous property, it is classified as a mineraloid, unlike crystalline forms of silica, which are considered minerals. Powered by 27 Opal Ave Spencer ID, 83446, USA. 960417. Jan 1, 2020 · The Juniper Ridge Opal mine is the site of a major opal discovery and development that has been going on for 30 years before being abandoned. Pryor Mountains – Agate, Geodes, Fossils. 16 million acres. Anita Moore-Nall and David R. Many of the locals in Coober Pedy prefer to live underground in dugouts where it is cool in summer and warm in winter. com. 3) pack a bunch of drinks and food, there isn't a gift shop, this is a active mine site. Bonanza Opal Mines. Gold mining deposit report for "Deposit #Usgs10224808" (#USGS10224808) in Baker County, Oregon. Oct 6, 2022 · The small town of Spencer in eastern Idaho is often referred to as "The Opal Capital of America. The colors can include blues, greens, reds, and oranges, making each opal unique. The locations and other information in this database have not been verified for accuracy. Dust Devil Mining – Plush, OR 97637. Search the site See full list on royalpeacock. 2040 Hwy 287. Browse the site. Sep 29, 2020 · Natrona County. com The Spencer Opal Mine, the largest privately owned gem stone producer in the State, is the major producer of Opal. Visit Website. Helena Virgin Valley is considered to be the premiere source of precious opal in the United States (Jones, 2004, p. Jasper is abundant in Montana, and one type that many rockhounds seek in this state is called Wonderstone. To learn more about sapphire mining in Montana, see Jeff Moriarty's article and video about his visit to the Eldorado Bar and Spokane Bar mines. You may prospect and locate claims and sites on public and NFS land open to mineral entry. 27 Opal Ave Spencer ID, 83446, USA. Add to Wish List. Geological Survey, Reston, Virginia. According to Potentate Mining, about 7 kg of sapphire rough has been produced so far, and several stones greater than 20 cts. You could call it the “Quiet Giant” of sapphire mines, because it has produced over 180 million carats of sapphires for over 130 years without receiving much “press”. Reservations recommended. Its name seems to hint at the possibility of finding some opal. The mine and washing plant are undergoing further upgrading. Welcome to Coober Pedy, a remarkable underground opal mining town nestled in the heart of the Australian Outback. You get instruction in the shop about what you are looking for and how to find it. States. Yellowstone River, Custer County – Moss Agate. Sort By. If you’re planning a vacation in Montana we’d love to see you. Mining. Miners use Calweld drills like this one for digging shafts. Royal Peacock Opal Mine – A very well-known and popular opal mine open to the public from May through the summer, with lodging available. Juniper Mountain Gem & Mineral | Klamath Falls OR Juniper Mountain Gem & Mineral, Klamath Falls, Oregon. Beginning in the 1970s, mechanized opal mining became prevalent. Sourced from all the major opal mining areas in outback Australia, we offer a wide range of Australian opals to suit all tastes. Jan 12, 2024 · Here are more family-friendly locations that you and your kids will enjoy if you want to show your kids the thrill of public gem mining. —. This mining operation primarily utilizes surface mining methods to extract opal deposits. The country is a beautiful balance between ancient flood plains within the outback arid landscape of grassland The Bozeman Gem and Mineral Club is the oldest ‘rock club’ in Montana, established in 1939. Locally, ethically sourced gems from the United states. , Madras, OR 97741. SiO 2 · n H 2 O. 208-374-5476. ” See all things to do. There are also places where you can find ruby, sapphire, opal and many other gemstones. Its diverse landscapes, from snow-capped mountains to vast plains, boast a treasure trove of fascinating rocks and minerals. This specimen consists of glassy hyalite opal (Opal-AN) on a light-colored granite pegmatite matrix. Agate, common opal, and some fossils may be found at the Agate Mountain site. Since 1981, the Royal Peacock Opal Mines have been open to the public for fee digging. include Nevada, which has opal as its state gemstone, Oregon, Idaho, Arizona, Utah, Washington, Arkansas, and Louisiana. We are open to the public as a fee dig mine each summer from May through September. 00 Regular price. Welcome to the serene world of opal mining in South Australia, where a relaxed ambiance blends seamlessly with captivating opal discoveries. com . Spencer Opal Mines has been known for years as a great place to find real value in opals. All You Find Are Yours to Keep. Opal Country Cafe and Gift Shop and Spencer Opal Mines, Spencer, ID. Today, several commercial mining operations and more than 200 private claims are working the Virgin Valley opal deposits, producing not only the prized Black Opal, but also Fire Opals of many hues, with the brilliant fire unique to the valley’s gem. Connect with us! Gem Mountain has two amazing locations. Physiography 1 Records. 2015 Mining and Mineral Symposium, Montana Bureau of Mines and Geology pp47-49. Spencer is a small hamlet (population 33) that is called the “Opal Capital of America. The most productive mines to date have been the famous Royal Peacock, Virgin Opal (Bonanza), and Rainbow Ridge Mines (USGS, 1984, p. Complete Gem Gravel Party Pack! We’ve put together a mining package that is both fund Feb 13, 2024 · 8. Granite Mountain Nature Gallery – 305 Park St Ste A, McCall, ID 83638, United States. The deposit was discovered early in the 1900s, and during the 1970s was worked commercially and operated as a fee dig for rockhounds. Aug 9, 2011 · Couple wants to expand opal mine near La Pine. Jefferson River – Agate, Chalcedony, Jasper. The Club offers multiple programs, activities, and affiliations to all members. Regular price$125. Mine your own at the Rainbow Ridge Opal Mine. Search the site Fields such Coober Pedy, Andamooka, Mintabie, and Lambina produce stunning White and Crystal Opals. Virgin Valley is located in the isolated extreme northwestern corner of the State of Nevada in Sep 3, 2019 · One good choice was an opal “mini-mine” in Spencer, ID, which was only 65 miles north of Idaho Falls, and only 55 minutes, since the speed limit is 80 mph for most of the way. Here are 10 of the best rockhounding sites for rocks and minerals in Montana: Crystal Park – Amethyst, Quartz crystals. Denio, NV 89404. The play of colors in the precious opal commonly exhibits reds greens and blues. The richest states in opals are Nevada, Oregon, and Idaho. No building materials were used to build these underground homes, and this form of sustainable living still prevails in For families who want to explore the wonders of gem mining with their kids, here are some of our recommended family-friendly public gem mining places in the state: Double Eagle Mine – Lakeview, OR 97630. Gemstones: A diversity of gemstones are produced from mines throughout the United States. Wilson purchased the nearby opal mine, which they later named the Royal Peacock, in 1944. Richardson’s Rock Ranch – 6683 NE Hay Creek Rd. In July of 2022, a new program was put into place. About 15-miles after the Idaho/Montana border, is the town of Spencer, featuring the Spencer’s Opal Mine, the Opal Capital of America. We are a family business that has owned the mine since 1968! America's Opal for four In early February we set off for a day trip to the Opal Mountain area. Silver Post – 1875 Festival Plaza Dr Suite 150, Las Vegas, NV 89135. Rainbow Ridge Opal Mine. 14). Welcome to Gem Mountain Montana. It usually involves advanced equipment such as Calweld drills for shaft digging and tunneling machines or front-end loaders for horizontal tunneling. Open seasonally. Year Round (775) 969-3616 In Season (775) 941-0111 Email: info@bonanzaopals. There are many places in the United States where you can pan for gold and have a reasonable chance of finding some. 40190 Sagebrush Creek Road, Denio, NV 89404. The miner would then branch out sideways, following the “level” of opal. Rockhounds were allowed access to the mine itself and the costs were most reasonable. Where to Find Jasper in Montana. Access is from I-15 south of Dillon via a paved secondary highway and rather primitive-at-times (rutty) gravel and dirt roads. Phone +1 406-859-4367. Idaho Bling Bling – 2071 E 17th St, Idaho Falls, ID 83404, United States. You will find it, but most will be common opal which, although it comes in many colors of honey, green, orange, red, yellow and Spencer Opal Mines 27 Opal Ave Spencer ID, 83446, USA. Guests receive all the tools needed to search through a bucket of sapphire gravel concentrate. Here are some of the most common rocks and minerals in this gem-rich state of Montana: Agates. Known as Canterra Fire Opals, these opals are found in rhyolite bedrock. Margaret opal mine. Picture this: South Australia stands as a distinguished opal producer, with its opal mining fields Jan 22, 2024 · Montana, aptly nicknamed the “Treasure State,” is a geological wonderland for rockhounds. 00. A shaft is sunk straight down until some promising “opal dirt” is discovered. Beyond the beauty of the opals, this entire region is a world of its Jan 3, 2024 · For example, boulder opal, hyalite, and fire opal are all unique forms of this mineral. in Nevada, Uncategorized. The owners of the Last Chance Mine want to Jun 9, 2010 · June 9, 2010 Tim Bondy Not so local Outdoor News. One of my top rockhounding revelations in Montana was the Spokane Bar Sapphire Mine, just a stone’s throw away from Helena. Kokopelli Opals is an opal mine in the Virgin Valley of Nevada where you can find the black opal. Margaret opal mine in outback Queensland is located on Mount Margaret sheep and cattle station, which covers approximately 470, 500 hectares or 1. - Denio, Nevada Open in Google Maps The Gem Mountain Sapphire Mine is one of the largest, oldest, and best Sapphire Mines in the World. Natural gravel buckets and packaged products are hauled from our Mine location. PO Box 148. The mines here are the best in America, producing stones renowned for their fine layers and exquisite color. Ph. Located in the aptly named Sapphire Mountains, we’re hard to find but worth the drive. Read more about the Coober Pedy opal mining fields. Web Visit website. At Spencer the precious opal occurs as one or more thin layers within common opal partially filling gas cavities within a rhyolite-obsidian flow. - Denio, Nevada Open in Google Maps Aug 31, 2023 · Introduction. - Denio, Nevada Open in Google Maps Kokopelli Opals – A lesser-known but enjoyable opal mine open to the public, nearby other notable mines. S. Closed Sunday, Monday, and Tuesday – Visit us Downtown! Oct 3, 2016 · Hyalite opal from the Chalk Mountain Mine, in Spruce Pine, North Carolina, provides a classic example of uranyl-activated green fluorescence, and is one of the most brightly fluorescent minerals. Visit us January to April from 9am – 4pm and May to December from 9am – 5pm. Lageson (2015) Elevated REE in Ore Minerals of the Pryor Mountain Mining District, South Central Montana. 4) pay attention to their (great) directions. Gravel washing is available at our downtown Philipsburg location on a first come first serve basis. Capture the free spirit of cold running water in your Western-inspired accessories when you wear Montana Silversmiths jewelry from the River of Lights collection. Wonderstone is a unique type of jasper that possesses gorgeous, wave-like patterns that come in pink, yellow, violet, and maroon. About the MRDS Data: All mine locations were obtained from the USGS Mineral Resources Data System. Gem Mountain. Royal Peacock Opal Mine. Prospectors did not recognize the gemstone at first, since these particular samples were not the traditional blue that the high-valued gemstones were known for. The hills have yielded countless world-class precious opal specimens during that time. Check the mining page for current pricing as well as an explanation of the digging options, along with important tips. The opal shows brilliant green fluorescence under short wave UV, and a bright green response under Apr 7, 2022 · Mexican Fire Opal usually appears as polished or cut specimens, but there’s a market for those that include the matrix of the stone as well. Just south of the Oregon border in a ruggedly remote corner of Nevada sits the Rainbow Ridge Opal Mine, home to rare, semi-precious gems sought by rockhounds everywhere. The most famous location is Opal Butte, which is a large volcanic cinder cone in Morrow County. There have also been a few "fee mining" locations where individuals can pay a fee, search for opal, and keep any that they find. You can find agate, allanite, lithium, magnetite, manganese, uranium, and bentonite. gemmountainmt. GEM GRAVEL PARTY PACK. U. Phillipsburg, MT 59858. The road is paved to our front gate, and we are only a few miles off one of Montana’s most popular scenic drives, the Pintler Scenic Route, on MT Hwy 1, between Anaconda and Drummond. admin. Our Mt. Hours & Admission. 43255 Sagebrush Creek Rd. May 23, 2024 · Year Round (775) 969-3616 In Season (775) 941-0111 Email: info@bonanzaopals. We are a family-run operation working hard to provide the best experience for families and treasure-hunters alike. Below are some of our favorites: Antares Minerals & Pottery – 431 Front St, Evanston, WY 82930. Spokane Bar Sapphire Mine. (406)859-GEMS (4367) Toll Free (866) 459-GEMS (4367) Website: www. American Jewelers – 11155 S Eastern Ave #130, Henderson, NV 89052. American Bar – Sapphire, Garnet, Kyanite. 5360 Castles Rd. Opal Mountain, just north of the Black Mountain Wilderness, has a lot to offer. Sale price$125. I was wrong. Bookings are necessary and this can be done either through the website or by calling ( 406-437-8605 ), and visitors pay cash for the dig which they are then free to take Jul 24, 2022 · The best places that you can find opals in the U. Feb 27, 2023 · The Blue Jewel Mine is a great way to spend an afternoon in Montana digging for sapphires and who knows what else, and many visitors are thrilled to find their own sapphires. The Gift Shop is open from 9 am- 7 pm. A mother/daughter team designs our jewelry around our local Montana sapphires. Located in South Australia, this unique town has earned its reputation as the “opal capital of the world. Natrona County is located in central Wyoming, and it is another excellent county when it comes to rocks or minerals. gemmtn. With four decades of experience, our opal cutting service creates all types of beautiful We're a small scale Southern Oregon based mining operation specializing in gem quality fire opal. Club members have various interests, including mineral specimens, fossils, gemology, geology, faceting, jewelry design, and lapidary arts. Rainbow Ridge Opal Mines Inc. Gem Mountain is located in Philipsburg, Montana, a remote area in western Montana. Instead, these Alluvial Sapphires came 2 reviews and 26 photos of SPENCER OPAL MINE "The store and its specimens are incredibly beautiful, and the staff beyond friendly and helpful. When light hits an opal, it travels through tiny silica spheres inside the stone, creating a rainbow of flashing colors, known as “play-of-color. The last gravel products for washing in store will be sold one hour . I thought this might be a fun roadside attraction and an interesting tour. have been recovered. Discover your own Montana Treasure, a Montana Sapphire Gemstone from Gem Mountain. The opal mining fields of Coober Pedy lie in the outback of South Australia, Stuart Range, 750 km north of Adelaide. Feb 3, 2022 · 201 W Broadway St, Philipsburg, MT 59858, USA. Opal-hunters made their way to Coober Pedy and adapted to living underground in so-called “dugouts”, for their favourable temperatures of 23℃ to 25℃ regardless of the conditions above ground. Opal Butte is home to a variety of opals, including common opal, hyalite opal, and precious opal. Montana Sapphire Jewelry in sterling silver and gold unique settings. Today the town is still very opal oriented, with open-pit and underground mining operations all over the fields. Opal tourism is the town’s main industry. Sapphires. 3,429 likes · 126 talking about this. Second row: a Vesuvianite cabochon (California), a freshwater cultured pearl (Tennessee), a Mt. , 40190 Sagebrush Creek Rd, Virgin Valley, NV 89404 (775) 941-0270 glen@nevadaopal. A view of the mini mine and the Cafe from the parking lot. ”. The site is situated within the Great Basin region of the Intermontane Plateaus, which imparts distinct geologic and geographic An Opal that was found at Spencer Opal Mines which is just 58 miles from Rexburg. This site offers a real treasure hunt: you can dig for a fee and the Gold Fever Rock Shop on-site will set you up with all your gear if you don’t have your own. The Bonanza Opal Mine is located in Humboldt, Nevada, within the renowned Virgin Valley Mining District. White Cliffs, situated in north western New South Wales, was Australia’s first viable commercial opal mining field. Everything you need to get started will be provided with admission. White Cliffs opal fields. 10 Virgin Valley Road, Denio, NV 89404. By Hannah Northey | 02/27/2024 01:37 PM EST . You will definitely find opal in your box but very little "fire" aka the sparkly colors that make opal incredible. " After all, it's here you'll find the largest opal mine in the state — Spencer Opal Mine — where you can dig for your own opals. It was all because of his wife, Mabel. Driving along the level is carried out with picks and explosives. Gem Mountain Sapphire Mine Philipsburg, Montana In operation since 1892, the Gem Mountain Sapphire Mine is one of the oldest and most significant sapphire mines in the U. The main objective for this vacation was rock hounding and the Spencer Opal Mine was our first destination. Feb 27, 2024 · Montana’s highest court backs contested copper mine. Spencer is located in eastern Idaho right off Interstate 15 and close to the Montana state-line. Sep 5, 2023 · Living in “dugouts”. After spending two years discovering and taking over the abandoned claim in 1998, a father and son team, Ken and Chuck Oldham, formed a group of lapidaries and miners. Millions of dollars in opals have been taken from the Virgin Valley since 1905. Hydrated silica. Mining first started in 1892 with large stones exhibiting good color Mining claims can be located on open public land administered by another federal agency (most commonly on Forest Service land). Another way you can see and take home Wyoming opals is to visit our local rocks and minerals shop. I was expecting maybe a tour of a working opal mine and a gift shop. Jan 24, 2017 · The Southern Cross Mine and the Great Extend Mine are two of the most famous names in Yowah’s history. Eldorado Sapphire Mine – 5582 Four Cee’s Rd, Helena, MT 59602, United States. Sapphires were first discovered flowing through the Montana Rivers during the gold rushes in the 1860s. 6”S 142º49’11. Moonlit Night Crystal Opal Hoop Earrings. Australian Outback Opals showcases the exquisite beauty of Australia’s national gemstone on Queensland's Tamborine Mountain. The mining. We also mine, design and sell our rough opal, gems and jewelry online and at gem shows. Top row: malachite and azurite cabochon (Arizona), a rough ruby (North Carolina), a faceted orange sunstone (Oregon), a teardrop variscite cabochon (Utah). If you are situated in any of these states, you have a high chance of finding opals. He was all about the cattle and the horses, but she liked the “sparkle and bling. The new mining season has just started at Rock Creek. You can see several of the features of the park including, the mines and the cafe. (775) 941-0270. Oregon's Morrow County is the site of a large opal mining operation in an area called Opal May 22, 2022 · Ron Coleman Mine, 155 Crystal Ridge Lane, Jessieville, Arkansas; 1-800-291-4484; colemanquartz. Mar 28, 2023 · The History of Sapphire Mining in Montana. Idaho Opal. Discovered in 1948 by a couple deer hunters, the Spencer Opal Mines have been owned and operated by the same family for the past 48 years. by. For about thirty-five years this field was the only major producer of opal for the world’s markets – the last year of the 19th century (1899) saw the White Cliffs opal field become the largest Facebook The simplest form of mining, carried out in the early days of opal mining, is by shaft sinking with a pick and shovel. For $15 you get the first pound of opal rock free then you pay $10 per pound for each additional pound of opals you find. Rainbow Ridge Opal Mine, Virgin Valley, Nevada. Jun 15, 2012 · BONANZA OPAL MINES (DENIO, NEVADA) Jun 15, 2012. The 12 Amazing Spots To Find And Mine For Megalodon Tooth In Maryland In 2024. Add to Cart. Avas Silver & Rock Shop – 631 Shoshoni St, Thermopolis, WY 82443. Private claims now cover the main work area. We also create Montana agate jewelry, Montana and Idaho garnet jewelry and Idaho opal jewelry. gm vq in im la cu yr wx zu dw