Colorado Open Space Alliance Conference
2023 Conference: From Legacy to Lasting Impact
SOLD OUT! Sorry, the conference is sold out.
October 2-4, 2023
Viewline Resort
100 Elbert Ln, Snowmass Village, CO 81615
Presented by the Colorado Lottery and Great Outdoors Colorado.
Conference Schedule and App
View your conference schedule at cosa23.sched.com or download the Sched app.
Hotel Accommodations
The Viewline Resort Snowmass is completely sold out. However, rooms are available at the beautiful Stonebridge Inn, a short walk from the conference center.
Stonebridge Inn
The Stonebridge Inn is offering a discounted nightly hotel rate of $149 for COSA conference participants or 15% off of nightly condominium rates at Tamarack Townhomes, Terracehouse Condominiums, Woodrun Place Condominiums, Top of the Village, Lichenhearth, Aspenwood, and the Villas at Snowmass Club.
For reservations call 1-844-330-1859 and ask for the COSA 2023 Group Rate. Please call between the following hours:
- Monday – Friday: 8 a.m. – 6 p.m. (Mountain Time)
- Saturday and Sunday: 9 a.m. – 5 p.m. (Mountain Time)
Discounted rates expire Aug. 23. Rooms are not secured until reserved by individual guests and deposit is paid. Regular deposit/cancellation policy will apply. Copies of tax exemption certificates may be required before arrival.
Other Hotels
Other hotels in the area include:
Sponsors
COSA is seeking sponsors for the 2023 conference! Reach open space professionals and get acknowledged in a variety of ways.
Now Accepting Session Proposals
The theme for the 2023 conference is From Legacy to Lasting Impact. All proposals will be considered, but preference will be given to proposals that address topics of legacy and forward thinking.
Hotel Accommodations
Viewline Resort Snowmass
100 Elbert Lane, Snowmass Villiage, Colorado
970-742-0005
Starting at $149/night
Last day to book at the discounted rate is Friday, Sept. 1.
Tax Exemption Information: Each guest is required to provide their individual tax exempt certificates to the Viewline Resort Snowmass prior to arrival. Email your tax certificate to Group.Reservations@ViewlineResortSnowmass.com. The hotel must have one certificate on file for each paying guest.
Colorado Open Space Alliance Conference
"Renew, Recharge, Reconnect"
September 19-21, 2022
Elevations Hotel and Spa
Crested Butte, Colorado
Sorry, but the conference is SOLD OUT and our waitlist has reached capacity.
Registration Tips
- Make sure the select the correct ticket type if you want to attend the networking event on Tuesday night (the networking event is an additional $25).
- Select your sessions after choosing your ticket type.
- Open the event schedule in another widow to reference session descriptions during registration.
- Certain field trips have an additional fee. A separate invoice will be sent.
- You can change your sessions after registration if needed using the attendee portal.
Networking Event
Everyone is invited to attend the networking event on Tuesday. Tickets are $25 and need to be purchased for each guest or conference attendee who did not register using a ticket with the networking event option.
Purchase Networking Event Ticket
Hotel Reservations
Elevations Hotel SOLD OUT
Unfortunately the Elevations Hotel is completely sold out of rooms. Please try reserving a room at the Grand Lodge.
Grand Lodge
The Grand Lodge is only a two minute walk to the conference and COSA registrants are guaranteed their lowest rate of $126/night + $20 resort fee. $49 is due at time of booking, with 100% due 7 days before arrival. All payments are non-refundable. Parking is free.
Please call 855-332-1601 option 1, then option 7 any day from 8 a.m.-5 p.m. to get the group rate.
Other Lodging Options
- Lodge at Mountaineer Square, next door, condo style rooms, (970) 349-4000
- Plaza, next door, condo style rooms, (970) 349-2900
- Nordic Inn, 10 min walk, (970) 349-5542
Sponsors
COSA is seeking sponsors for the 2022 conference! Reach open space professionals and get acknowledged in a variety of ways.
Conference App

Download Attendify and search "COSA" to access the conference.
Don’t want to download the app? You can still see all the features using the Web App.
Registration Now Open
Registration for the 2021 conference is now open!
Now Accepting Session Proposals
The theme for the 2021 conference is Expect the Unexpected: Building Resilience to Adapt to Change. All proposals will be considered, but preference will be given to proposals that address the theme of resilience.
The deadline to submit proposals for the 2021 conference is Friday, May 14.
Keynote Speakers
Nina Simon
Nina is author of the best-selling books "The Participatory Museum" and "The Art of Relevance."
Learn more about Nina →
Lori Weigel
Lori is the Principal of New Bridge Strategy, a research firm based in Colorado.
Learn more about Lori→
Agenda & Session Presentation Files
- Conference Agenda
- Creating a Collaborative Future for Open Space Rangers
- Developing a Resiliency Framework for Jefferson County Open Space: Meeting the Mission by Managing for Future Uncertainty
- Filling the Ranger Void: How small agencies can provide vital services without a ranger program
- Goldsmith Gulch: Using Contemporary Design to Restore a Healthy Channel
- Nature Play Design Guidelines
Registration Now Open
Registration for the 2018 conference is now open!
Hotel Accommodations
Steamboat Grand Hotel
2300 Mt Werner Cir, Steamboat Springs, Colorado
970-871-5500
Starting at $100/night
Book Room
- Agenda & Presenters (great if you can't get the Eventzilla app to work)
- Pre-Arrival Message
- Agenda Overview
- Session Room Assignments


Networking Event
Everyone is invited to attend the networking event on Tuesday. Tickets are $25 and need to be purchased for each guest or conference attendee who did not register using a ticket with the networking event option. Purchase Networking Event TicketHotel Reservations
Elevations Hotel SOLD OUT
Unfortunately the Elevations Hotel is completely sold out of rooms. Please try reserving a room at the Grand Lodge.Grand Lodge
The Grand Lodge is only a two minute walk to the conference and COSA registrants are guaranteed their lowest rate of $126/night + $20 resort fee. $49 is due at time of booking, with 100% due 7 days before arrival. All payments are non-refundable. Parking is free. Please call 855-332-1601 option 1, then option 7 any day from 8 a.m.-5 p.m. to get the group rate.Other Lodging Options
- Lodge at Mountaineer Square, next door, condo style rooms, (970) 349-4000
- Plaza, next door, condo style rooms, (970) 349-2900
- Nordic Inn, 10 min walk, (970) 349-5542
Sponsors
COSA is seeking sponsors for the 2022 conference! Reach open space professionals and get acknowledged in a variety of ways. Sponsorship DetailsScholarships
COSA will award several scholarships to cover the registration costs for the 2022 conference. This award is made possible by our sponsors. ScholarshipsSponsors
A huge thanks to all of our sponsors! Please show them your support.