International Cartographic Association

12th Mountain Cartography Workshop

Snow Mountain Ranch, Colorado

April 11-15, 2023


Rocky Mountain National Park

Participants page

Some required fields are missing. Please review the form and submit again.

Do you have questions about the workshop? Feel free to email us.

Brooke Marston, US Department of State

Tom Patterson, US National Park Service (retired)

Alex Tait, National Geographic Society

Click here to make room reservations, which includes all meals.This is the default reservations page at Snow Mountain Ranch and some options do not apply to our group. Carefully read the instructions below before making reservations.

1) Although the reservations page says that you can have up to six people in a room, we have made arrangements with Snow Mountain Ranch for only single ($132 per night) or double ($85 per person per night) occupancy rooms. There is no cost savings to having more than two people per room.

2) If you are sharing a double room with a roommate, only one person can make the room reservation with a credit card. You and your roommate must decide who will use their credit card. Warning: If both of you make reservations, it will be counted twice and you will be charged for an unoccupied room. Snow Mountain Ranch can split the bill between two credit cards when you check out.

3) To stay for the full workshop, select 11 April as your arrival date and that you will stay for four nights. To extend your stay either before or after the workshop, Snow Mountain Ranch asks that you instead make your reservation by phone. Call (888) 613-9622. Be sure to mention that you are with ICA Mountain Cartography group.


Greetings mountain cartographers!

Below you will find the workshop registration form and a link for room reservations. Note that Snow Mountain Ranch where we are staying is handling room reservations separately from the workshop registration. You will need to do both.

Please contact us if you have any questions or problems.

Brooke Marston, Tom Patterson, and Alex Tait

Workshop organizers

Outdoor Recreation Day

Room Reservations


Rocky Mountain National Park

The workshop registration fee is $45 per participant, which is in addition to room and board at Snow Mountain Ranch.

Some required fields are missing. Please review the form and submit again.


Pay online here or with cash at the workshop. ATMs are available at Snow Mountain Ranch. If you opt for cash, we will provide you with a receipt at the workshop.



Driving to the Snow Mountain Ranch takes two hours from Denver International Airport. Snow Mountain Ranch is located at 1101 County Road 53, Granby, Colorado 80446. GPS Coordinates: Latitude 39.992565 | Longitude -105.926385


Use this link (Arriving) to find rides with other workshop participants from Denver Airport (DEN) to Snow Mountain Ranch, and this link (Departing) for finding rides from Snow Mountain Ranch to DEN. After you have found someone to share a ride with, make sure to exchange flight information and mobile phone numbers.

Airport Shuttle Service

For shuttle transportation from Denver International Airport to Snow Mountain Ranch (and back), contact Home James Shuttle at (800) 359-7536. The price is $88 one-way ($73 for 3 or more people).


Amtrak runs daily from Union Station in Denver to Fraser, Colorado. Call (800) USA-RAIL for more information. Contact the workshop organizers if you will need a ride from the Fraser train station. Uber and Lyft are not available.

Distance from Snow Mountain Ranch to:

Grocery store – 7.3 miles (11.7 km)

Amtrak Train Station – 9.1 miles (14.6 km)

Never Summer Brewing – 9.2 miles (14.8 km)

Winter Park Ski Area – 15.8 miles (25.4 km)

Rocky Mountain National Park – 26.4 miles (42.5 km)

Denver International Airport – 103 miles (166 km)

Weather and Conditions

Current road conditions:

Weather forecast: Granby, Colorado

Winter Park Resort: Snow report and webcams

Schedule and Preliminary Program

Last update: April 3, 2023

Whether you are adventurous or prefer to take it easy, you will find something fun to do. Have a look at the options below and then sign up here. This is only a tentative list so that we can guage interest and transporation needs. You can change your mind later.

Day Trips with Leader (via car)

1. Backcountry Skiing at Berthoud Pass

The mountain slopes and peaks at Berthoud Pass (11,307 ft, 3,446 m) offer great off-piste skiing routes on exposed peaks and steep valleys. Maybe climb up to Mount Flora (13,127 ft, 4,017m). This was the site of a ski resort that closed in 2003 and all facilities removed. Check out the possibilities on Powder Project. This trip is for advanced skiers with experience in high mountain terrain. We will carpool to Berthoud Pass parking area at the top of the pass, about 25 mi (40 km) from Snow Mountain Ranch.

2. Lift-served Alpine Skiing at Winter Park Resort

Ski at Winter Park Resort, a full service premier Colorado alpine ski destination. There are great trails and facilities and reasonable prices for spring skiing, you can ski for $100 per day in April. We will share car rides to and from the mountain. Winter Park is 16 mi (25 km) from Snow Mountain Ranch.

3. Rocky Mountain National Park and Grand Lake

Visit the spectacular Rocky Mountain National Park via the Grand Lake entrance. Our day trip will include a stop at the Kawuneeche Visitor Center, a drive up part of Trail Ridge Road, and a short hike on one of the many trails near Grand Lake. We will carpool to the park which is 25 mi (40 km) from Snow Mountain Ranch.

4. Hot Sulphur Springs Resort & Spa

Soak and relax in your choice of 15 thermal pools located 14 miles (23 km) from Snow Mountain Ranch. From their website: The Water in our pools is 100% natural. We do not add any chemicals to our water the natural flow of the water balances it (5 gallons per 40 seconds) there are no filters or pumps on site. An adult day pass is $26. Robes and towels are available for rent.

On Your Own at Snow Mountain Ranch

There are wonderful recreation opportunities right at Snow Mountain Ranch if you do not want to get in a car. Depending on snow conditions and weather, you can go cross country skiing, snowshoeing or hiking on trails at Snow Mountain Ranch or take advantage of activities such as those described below.

Nordic Center

If the Snow Mountain Ranch Nordic Center is still open (unlikely), you can rent skis or snowshoes there. There are over 120 km of groomed track and trails. Even if it is not open, there are still all the trails to hike on.

Other Recreation Options


Meets at the Indoor Range in the Kiva. Registration required. Small fee.

Climbing Wall

Meets at the Indoor Climbing Wall located in the Kiva. Registration required. Small fee.

Craft Shop

Try ceramics, leather crafts, wood burning and more. Prices vary upon craft.

Kiva Recreation Center

Roller skating, basketball, volleyball, ping-pong, foosball, billiards. Open 9am-9pm.

Swimming Pool

Lap swimming and slides are available at our pool.

Winter Pavilion

Winter tubing and Ice Skating available at our Winter Pavilion located next to the Nordic Center.


Last update: May 1, 2023

Schedule at a glance

Friday, 14 April

7:00-9:00     Breakfast

9:00-5:00     Outdoor recreation day*

6:00-7:30     Evening social

Saturday, 15 April

7:00-9:00     Breakfast

Morning       Departure, check-out

* Outdoor recreation day could possibly change to Wednesday or Thursday depending on weather.

Tuesday, 11 April




Wednesday and Thursday, 12 and 13 April











Arrival, check-in


Opening reception


Morning session 1

Coffee break

Morning session 2


Afternoon session 1

Coffee break

Afternoon session 2


Evening activities

     Wed. - Avalanche talks

     Thurs. - Mountain trivia