See Boulder City for the town in Nevada near the Hoover Dam.
Flatirons and Chautauqua Park, Boulder
Boulder, Colorado is a city located at the foothills of the Rocky Mountains. It is a college town and a very pleasant place to live and visit.
These days, Boulder wears several hats: as a university town, home of the University of Colorado at Boulder  and others; as a hi-tech town that is rapidly spawning bedroom communities in outlying farm towns; and as a center of alternate culture, with various new age institutions, Naropa University , meditation centers, Buddhist centers, and the like. What perhaps distinguishes it most from other cities of similar size in the United States, however, is its status as a mecca for serious athletes, many of whom have made their home here for the conditioning advantages of high altitude, combined with businesses, facilities, and a community that provides opportunities for serious training and competition. Even the average nine-to-five Boulderite is much more likely than the average American to be a serious climber, cyclist, runner, skier, etc., and you will see the difference as you're about town.
Boulder is situated in the Front Range region of Colorado and is virtually contiguous with Denver. This reflects that it is the "front door" to the mountainous country to the west, with many outdoor attractions, and also the fact that there are significant cultural differences between Boulder and Denver. Additional information & community buzz is available at the Boulder City Wiki site.
Boulder is easily reached from Denver International Airport via car or bus. The public Regional Transportation District (RTD)  'AB' bus runs hourly between DIA and Boulder. The AB bus is a clean, safe, and easy way to get to town, and the route 'B' bus runs between Boulder and Denver. Boulder is only 20 miles from Denver, and is an easy drive via US highway 36.
Boulder has decent mass transit for such a small city. Boulder and Denver share a common mass transit system, known as RTD . You will also notice that a large percentage of locals use bicycles to get around the down town (most of the city sights are within 2 miles). If you choose to drive around town, be aware that there is heavy traffic on the main thoroughfares, high numbers of pedestrians (cyclists) and parking downtown can be a bit tight. There are a number of city-owned garages tucked behind the buildings downtown. Keep your eyes open for the large green "P" signs outside their entrance ramps, as they don't look like parking garages from the outside. Be careful when parking in the University area, as tickets can be quite expensive. Also note that one can be fined for smoking in one's car and the fine is a bit steep, although I've never heard of anyone who's been fined before. Boulder's police are vigilant about drunk driving, so try to keep out of the car when you find yourself tipping down a local microbrew or two. Watch carefully for the school zones: when the yellow lights are flashing, slow down to 20 mph! Many of the main streetlights have cameras that can capture you running the tail end of yellow lights. Watch out, or you may get tickets in the mail!
Many locals use the "Skyride" RTD bus to get to and from the airport. They park their car at the Table Mesa Park-and-Ride; and then take the bus to and from the airport. Parking at the Park-and-Ride is free, and two weeks of parking is allowed. So, the overall cost is much less than driving to the airport and parking there. It's also greener and easier.
The stories about being checked at the Boulder county line for cigarettes in the car are false.
Pearl Street Mall, Boulder
Downtown covers a large area, with the Pearl Street Mall (see below) at its core. Downtown features shopping, eating, and entertainment for all ages. Be sure to check out the restaurants on Walnut Street, between 9th Street and Broadway, as they offer several good options just off the Pearl Street Mall. Also check out the West End of Pearl Street, between 8th Street and the Pearl Street Mall, as it offers additional shopping and more restaurant options. For home furnishings, make sure to check out Pearl Street's East End, from the Pearl Street Mall to 20th Street. Stop by the Boulder Farmers Market  on 13th St., between Canyon and Arapaho Avenues, on Saturday mornings and Wednesday evenings - an experience not to miss.
Pearl Street Mall. This four block long downtown pedestrian walking mall is surrounded by historic buildings containing shopfronts and restaurants. Along Pearl Street you will find many boutiques and independent shops featuring everything from clothing to trinkets and art. Also along Pearl Street are some national chain shops, and several street performers. For food, the Pearl Street area offers a large variety of cuisines from around the world, and is priced from $8 to $30 per person.
University Hill, . This small area is located West of Broadway across from the main campus of the University of Colorado at Boulder. Commonly referred to as just 'The Hill,' the area caters to college students with a variety of restaurants and bars, and services such as barbershops, bookstores, and coffee houses. There are also several entertainment venues that showcase up-and-coming talent from around the world.
University of Colorado at Boulder, . The flagship institution of the state of Colorado, CU (as it's called locally) has a 600-acre campus, with beautiful gardens and buildings tucked away in its mainly pedestrian core that's worth a visit. Check out the Heritage Center  located in the Old Main building, for a look at the history of CU. There are also art galleries and museums located throughout campus.
Boulder Creek Path, . This miles-long path sits on the banks of the Boulder Creek, cutting right through the middle of town. Along this path you will find beautiful walking, biking, and other forms of recreation. In the downtown area, pick up the path at Civic Park, located on Broadway, between Canyon and Arapaho Avenues. In the summer, many parts of the creek become popular swimming holes. You can buy (and fill) inner tubes at local gas stations, should you want to have a down-the-creek journey.
Chautauqua Park, at Baseline Ave and 8th Street, . Located at the base of the Flatiron's rock formations. For a minor hike, take the trail to the 3rd Flatiron. This hike will show you sweeping vistas of town and an up-close and personal look at the Flatiron's rock formations. During the summer months, the Boulder Symphony performs at Chautauqua, with the mountains as a stunning backdrop.
Front Range Climbing, 1370 Windmill Ave., Phone: 1-303-840-7270, . offers climbing trips through the Colorado Front Range, including Boulder Canyon.
Whitewater Tube Co., 204 Canyon Blvd (at The Watershed School), (720) 436-9196, During summer time, it is popular to go tubing on Boulder Creek. Either rent from Whitewater or buy a tube at a local service station.
Happy Thursday Cruising, Every Thursday during the summer, a lot of people gather up in front of wahoo's restaurant and go around the city with bikes. Each week they have a different theme to wear. 
NCAR Trails, Green Mountain, Bear Mountain Trails.
The Caritas Spiritis Center
The Shambala Center
Celestial Seasons Tea Factory. Take the tour through this famous tea company. Check out the mint room, it is VERY intense.
University of Colorado at Boulder
Khow Thai, 1600 Broadway, ☎ 303.447.0273, . M-F 11-3 & 5-10; Sat-Sun 4-10. Tucked into a small space on the east side of Broadway just south of Arapahoe Ave, this restaurant has repeatedly been voted the best Thai food in Boulder. Not expensive and really good, especially the green curry. The owner is surprisingly anti-veg*n, so don't expect gracious substitutions or a warm reception.
The Kitchen, 1039 Pearl Street, ☎ 303.544.5973, . M-F 8-close; Sat-Sun 9-2, 5:30 to close. A fantastic neighborhood bistro that sources most of its food from local growers and producers. Open 7 days a week for breakfast, lunch, and dinner. Located at the west end of Pearl Street. Check out Monday night's Community Dinner, a $35 prix fixe meal that's off-menu, served family style around a huge table -- it's the best deal in town for the variety, quality, and quantity of food (reservations recommended).
Centro, 950 Pearl Street (near Pearl and 10th), (303) 442-7771.
Boulder Dushanbe Teahouse, 1770 13th Street, 303-442-4993, . 8AM-9PM. A great place to enjoy a cup of tea and enjoy architecture from half way around the world. The food is moderately portioned and deliciously prepared. In the summers, outside dining is available, and when the rose garden is in bloom it is amazing.
Illegal Pete's, 1530 16th Street, 303-623-2169, . A favorite for students of CU-Boulder, there is a location on "The Hill," close to Jones Drugs, across the street from the CU Economics Building, and one on the far east side of the Pearl Street Mall. Economically priced, very generously proportioned Mexican food and beer.
West End Tavern, 926 Pearl Street, 303-444-3535, . The classic American tavern is reborn! The rooftop deck is open (weather permitting), affording remarkable views of the Flatirons beneath 300 days of sunshine a year. Visit the Boulder locals' favorite for a cold brew and some good eats.
Brasserie 1010, 1011 Walnut Street, 303-998-1010, . For a more expensive meal, visit Brasserie 1010, on Walnut Street downtown, where french-inspired cuisine is served in an elegant setting with delicious daily specials.
Sushi Zanmai, 1221 Spruce (one block north of Pearl Street), 303-440-0733, . Zanmai is a traditional sushi house with the best rolls in town. Reasonably priced, watch as sushi chefs prepare your meal at the sushi bar. For the best deals, go to Happy Hour, from 5PM-6:30PM or all day Sunday. Try the Z-Number 9 and the Firecracker role or for an appetizer try the green mussels.
Q's Restaurant, 2115 13th Street, 303-442-4880, . Q's is located in the Hotel Boulderado. Q's delivers it's extraordinary cuisine at reasonable prices. For a truly exquisite display of the culinary arts, this is the place to be.
Boulder Chophouse, 1735 19th Street #100, (303) 296-0800, . Yes, it's part of a national chain, but it's still worth a visit to experience wonderful beef and seafood in a moderately priced environment.
Flagstaff House, (303) 442-4640, . Su-F 6PM-10PM, Sa 5PM-10PM. Tucked up on Flagstaff Mountain, the Flagstaff House has breathtaking views of the City of Boulder just below it. Visit for cocktails, dessert, or stay for a full meal, the views will astonish you. Located up Baseline Ave, on Flagstaff Mountain, just 3 minutes outside of town.
Mountain Sun/Southern Sun, On the East End of the Pearl Street walking mall, the Mountain Sun is well-known for homebrewed beers, but also serves seriously tasty American fare. In the last 5 years, it built a sister restaurant in South Boulder, the Southern Sun, that is roomier and even more raucous. It's loud and filled with earthy Boulder locals. At dinner no matter what day of the week, you may wait for 20-30 minutes for a booth, but their quesadillas, nachos, salads, burgers, pizzas, and vegetarian options are sure to please every time. (Note: Neither the Mountain or Southern Sun accept credit cards, and can be flaky about out-of-state checks. Both have ATMs onsite.)
The Cork, 3295 30th St., (303) 443-9505, . A high quality restaurant since 1969, serving excellent dishes from prime rib to lobster ravioli. Located on the west side of 30th street.
Sherpa's, 825 Walnut St., (303) 440-7151, . Run by Pemba Sherpa, this restaurant is just outside off Broadway and Pearl. Featuring authentic Nepalese food that is made fresh to order, this restaurant is a must of Boulder.
Bimbamboo, 1710 Pearl Street, ☎ 303-442-4575, . 11am - 9pm Every Day. Bimbamboo is a new Asian restaurant concept delivering a unique and modern spin on Asian food. A bold and distinctive fusion of Thai, Vietnamese, Indian, Korean, Malaysian and Japanese flavors. Whether you want a quick workday lunch or to linger over cocktails and dinner with family and friends, Bimbamboo is a welcome adventure in taste. $$. (40.022899,-105.271962)
Jax Fish House, 928 Pearl Street. Home to Top Chef Season 5 winner Hosea Rosenberg
The Sink, . The sink is a Boulder institution with its colorful walls, great food and stories past (Robert Redford was the janitor) it attracts a large crowd for burgers, beer, gourmet pizza, and drinks almost every day of the week. Bring a black magic marker, and you can sign your name on the ceiling like generations of graduating CU seniors. Do not write on the walls, though.
Mountain Sun/Southern Sun, . Two locations in Boulder for your delight. The original Mountain Sun is located on the east end of Pearl Street while newer location, called the Southern Sun, is in South Boulder at the intersection of South Broadway and Table Mesa in the Table Mesa Shopping Center. Some excellent beers (particularly the Java Porter) and often excellent Boulder granola music.
Boulder Beer, . Claims to be Colorado's first microbrewery, but there is no doubt that their beers have been around forever in Boulder. Brewery/Pub is located in north Boulder (in what always seemed an odd location) near the train tracks and off of Valmont near Foothills Parkway. They make great beers and have excellent happy hour deals.
Walnut Brewery, . Boulder's original brewpub that serves up a generous (and one of my favorites) heaping-high plate of nachos. Many classic beers that Boulderites rave about years after they leave Boulder. Located in the heart of Boulder on Walnut St, near 11th. Parking can be a pain in this area; best to use the parking garage across the street and hope for validation of your ticket.
Red Fish Brewhouse, . Classic small-scale brewpub in the heart of Boulder. New Orleans style food, great happy hours, and they even serve an organic beer (Tree Hugger is a great try). The restaurant has one of the largest big-screens in Boulder to watch the game, and small local bands in the evenings. Located on 13th and Spruce, one block off Pearl Street and across from the Boulderado Hotel.
Boulder International Hostel, 1107 12th Street, (303) 442-0522, . The cheapest place to stay in Boulder, just two blocks off the University campus and adjacent to University Hill. The hostel offers both dorm and private rooms, and caters to out-of-state and foreign travelers. It has spartan rooms but friendly people.
Rodeway Inn & Suites, 555 30th Street, (303) 444-3330, . Within walking distance of The University of Colorado at Boulder, this hotel offers amenities for business travelers and vacationers alike.
Briar Rose Bed and Breakfast, 2151 Arapahoe Avenue, 303-442-3007, . Bed and breakfast in the heart of Boulder offers organic breakfast, fine teas, private baths and ecologically-conscious hospitality. Walk to C.U., Naropa, Pearl Street and the 29th Street Mall.
Boulder Inn, 770 28th Street, 303-449-3800, . Prominently located directly across from the University, the Boulder Inn gives guests easy access to Boulder's principal attractions, NIST, NOAA, premier shopping, and extraordinary dining. Stylish, well-appointed rooms reflect a gracious ambiance, found throughout the hotel.
Boulder Outlook Hotel, 800 28th Street, 303-443-3322, . This new hotel is located adjacent to the University of Colorado at Boulder, and is the quintessential Boulder hotel experience. They have a black lagoon pool and a rock climbing area indoors. They even allow you to bring your dog along to stay with you.
Housing Helpers, 2865 Baseline Road, 303-545-6000, . Whether you represent a company needing interim housing for your employees or you’re booking your own short-term, furnished accommodations, we offer high quality executive rental apartments and homes backed by superior customer service. Housing Helpers corporate rentals are more comfortable, convenient and affordable than a hotel. If you are in between homes, on temporary assignment, or just vacationing, our executive short-term rentals will make you feel at home.
Hotel Boulderado, 2115 Thirteenth Street, (303) 442-4344, . A four-star getaway located one block off the Pearl Street Mall, with easy downtown access. Everything is within a five minute walk and you don't even need to worry about finding a parking place.
Quality Inn & Suites CU Boulder, 2020 Arapahoe Ave, 303-449-7550, . Located in the heart of downtown Boulder, this hotel is walking distance to The University of Colorado, Boulder minutes away from the Pearl Street Mall
Residence Inn Boulder, 3030 Center Green Dr., ☎ 3034495545, .
St. Julien Hotel, 900 Walnut Street, 720-406-9696, . This new three-star hotel is the luxury experience in downtown Boulder. Located at 9th and Walnut streets, the St. Julien offers everything you could desire while only being three blocks from the Pearl Street Mall.
Crime and personal safety
Boulder has a very low crime rate and has no bad neighborhoods, but use common sense. University Hill, which is bordered by Baseline, Broadway, and Canyon can become raucous in the evenings, especially on weekends. Downtown Boulder, especially at night, is frequented by panhandlers, who can be aggressive at times but are not dangerous. Aggressive panhandling is illegal in Boulder, and you may report it to the police. Throughout the hiking trails near university property, Boulder has black posts lit with a blue light that have emergency phones in them that only dial 911.
Boulder has a dry climate and during any season, dehydration can be a problem for visitors and residents alike. Drink plenty of water. If you go hiking in the evening, bring two quarts of water. At night, temperatures drop remarkably, so bring warm clothing if you'll be out at night. (This is true even during summer months.) Be aware of mountain lions while hiking (statistics ).
There are a very large number of opportunities for outdoor recreation. Go to the Gallery map store or to the Boulder Bookstore and buy maps and a guide.
Local favorites include the Anne U White hiking trail, the Chatauqua trails, White Rock, Eagle Trail, Boulder Creek, Dowdy Draw, Green Mountain, and Walker Ranch.
For Skiers/Snowboarders, the closest resort is Eldora, located near Nederland, CO. It takes about 45-60 minutes to drive there from Downtown. The 'N' RTD Bus to Nederland runs to Eldora during ski season.
This is a usable article. It has information for getting in as well as some complete entries for restaurants and hotels. An adventurous person could use this article, but please plunge forward and help it grow!