^ Montana State University states in their profile of Rocky Mountain National Park that there has been an increase of 2.5 °F (1.4 °C) in the average park temperature over "the past century" (charts show the period from about 1895-2010).[48] The National Park Service site states that the increase has been 3.4 °F (1.9 °C) over "the last century" (chart shows the period from about 1905-2010).[52]
A romantic weekend at the Castle Marne Bed and Breakfast on Capitol Hill in Denver will transport you to more elegant and romantic times with its nine magnificent rooms accented by antique Victorian furniture, fine décor, canopy beds, and fluttering curtains. Of course, they all have modern bathrooms with whirlpool or claw foot bathtubs and other contemporary amenities you simply cannot do without. 
Loveland, dubbed as the ‘Sweetheart City’ and known nationwide for its Valentine’s Day Love Stamp Program, is near the college town of Fort Collins in northern Colorado. Rent a charmingly restored 1903 Victorian cottage for your love nest, or snuggle together in a neighborhood home just minutes from hiking in the Rocky Mountain National Park. A visit to the Sweetheart City Winery is a great opportunity to sample some local wines while checking out original oil paintings inspired by a trip to Tuscany. Voted by locals as one of the most romantic places in Loveland, South Shore Parkway is certain to aid in a stolen kiss or two. Sample small plates and incredible desserts at Door 222 Food and Drink, a downtown gem not to be missed.
Take your love to new heights by ringing in your celebration at a unique tree house cabin rental near Pagosa Springs. From the private hot tub to feeling like you are above the trees with epic views of Pagosa Springs, this rental cannot be beaten. Guests would be right to take a vacation to this site in the winter so they can take advantage of skiing Wolf Creek Pass. Snuggle up with your partner from the comfort of a luxurious accommodation for your honeymoon.
By day, this forested hot spring just north of Steamboat Springs teems with families splashing in the all-natural pools. After dark, it becomes exclusively adults-only — and clothing-optional; don’t be surprised if you spy a cowboy or two taking a dip au naturel. Secluded hillside cabins and train cabooses are within sprinting distance from the pools, for those cooler Colorado nights.
Located in Lions Gate Drive in Winter Park, Winter Park Chateau is a boutique Victorian-style bed and breakfast ideally placed, as it allows visitors to easily explore the surrounding area. The Chateau offers well appointed, comfortable accommodation in the form of eight guest rooms, which feature king, queen, or double beds, designer décor, private bathrooms, and amenities such as flat-screen televisions and wireless Internet. Some of the rooms have fireplaces, jetted spa baths and private balconies with stunning views.
The Oxford Hotel in downtown Denver offers vacationers historic accommodations, a great spa, fitness center and a gourmet restaurant. Each room and suite at the hotel is individually furnished, featuring unique touches such as antique headboards and romantic claw foot tubs. Plush amenities include flat-screen HD TVs and Bose radios with an iPod docking station. Stay in touch while traveling by connecting through complimentary high-speed Wi-Fi on your phone, tablet or laptop. The Corner Room is especially romantic, letting you enjoy the view of the street below through floor-to-ceiling windows.
A popular high-altitude town with a bustling downtown scene and a diverse array of activities to choose from, Boulder is a fun place for everyone. It has many great restaurant offerings, in addition to outdoor sports, and is home to the University of Colorado at Boulder. It also has a thriving nightlife, as well as numerous art galleries, shopping, breweries and so much more.
Vail doesn't always fit with everyone's budget, particularly if you want to spend a night during the high season. In the vicinity are a number of small towns and villages that are less well known but more affordable and also worth a visit. Although not a ski resort, Frisco is a charming mountain town and one of the best places to visit in the area. This is a nice base if you are exploring the I-70 Corridor around Vail and Beaver Creek. The town has all kinds of quirky cafés, shops, and restaurants, and a true mountain vibe. Just up the way from here is the small town and ski resort of Breckenridge, at an altitude of 9,600 feet.
Brian and I descended back to ~7,000 feet for dinner in a small-town Indian restaurant in Nederland, Colorado, west of Boulder. By then, both our heads ached like a bad hangover, and my lungs literally burned when I tried to inhale anything but shallow breaths. Add generalized joint pain, and I had a full-blown case of altitude sickness. Given that I am a noted hypochondriac, I expected the worst.
