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


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: Feburary 17, 2023

We will announce Outdoor Recreation Day activities here when the workshop date draws closer. Most of the outdoor activities depend on snow cover.

Optional evening entertainment is also being planned, including the 2020 Mountain Trivia Challenge, a test of your mountain knowledge worldwide. To get a sense of what might be asked, check out previous challenges here and here. An evening excursion to Never Summer Brewing, a craft brewery in the nearby town of Granby, is a possibility.


Last update: February 17, 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