Management Plan for Legally-Designated Open Space Properties March 2017
Total Page:16
File Type:pdf, Size:1020Kb
Management Plan for Legally-Designated Open Space Properties March 2017 View of the San Francisco Peaks from Observatory Mesa © Tom Bean Prepared By: City of Flagstaff Open Space Program 211 W. Aspen Avenue Flagstaff, Arizona 86001 Table of Contents Executive Summary Page 6 Chapter 1: Management Coordination 1.0 Internal Management Coordination and Administration Page 9 Chapter 2: General Management Policies 2.1 Natural Resources Page 11 2.1.1 Water Resources Page 11 2.1.2 Vegetative Resources Page 12 2.1.3 Forest Health Page 14 2.1.4 Wildlife Resources Page 18 2.2 Cultural and Historic Resources Page 20 2.3 Public Use Page 21 2.3.1 Access Management Page 22 2.3.2 Recreational Use Page 24 2.3.3 Roads Page 25 2.3.4 Easements and Leases Page 26 2.3.5 Education and Research Page 26 2.3.6 Facility Development Page 28 Chapter 3: Picture Canyon Natural and Cultural Preserve 3.1 Property Overview Page 30 3.2 Natural Resources Page 33 3.2.1 Water Resources Page 33 3.2.2 Vegetative Resources Page 36 3.2.3 Forest Health Page 39 3.2.4 Wildlife Resources Page 40 3.3 Cultural and Historic Resources Page 43 3.4 Public Use Page 48 3.4.1 Access Management Page 49 3.4.2 Recreational Use Page 52 3.4.3 Roads Page 54 3.4.4 Easements and Leases Page 56 3.4.5 Education and Research Page 57 3.4.6 Facility Development Page 58 Page 2 of 105 3.5 Priority Action Plan Page 61 Chapter 4: Observatory Mesa Natural Area 4.1 Property Overview Page 67 4.2 Natural Resources Page 70 4.2.1 Water Resources Page 70 4.2.2 Vegetative Resources Page 73 4.2.3 Forest Health Page 79 4.2.4 Wildlife Resources Page 81 4.3 Cultural and Historic Resources Page 86 4.4 Public Use Page 87 4.4.1 Access Management Page 87 4.4.2 Recreational Use Page 90 4.4.3 Roads Page 93 4.4.4 Easements and Leases Page 95 4.4.5 Education and Research Page 96 4.4.6 Facility Development Page 97 4.5 Priority Action Plan Page 101 Appendices A. Picture Canyon ALTA Land Survey B. Arizona State Parks Conservation Easement for Picture Canyon C. Picture Canyon Annual Monitoring Checklist D. Bow and Arrow Park Agreement E. Noxious Weed Management Plan F. Picture Canyon Cultural Resource Study G. Picture Canyon Site Steward Monitoring Checklist H. Open Space Program Research Permit I. Observatory Mesa ALTA Land Survey J. Arizona State Parks Conservation Easement for Observatory Mesa K. Observatory Mesa Annual Monitoring Checklist L. Observatory Mesa Forest Stewardship Plan M. Cultural Resources Survey of 2,260 Acres Page 3 of 105 List of Figures 1. Land Ownership Surrounding Picture Canyon. Page 32 2. Floodplain and floodway designations within Picture Canyon. Page 35 3. Motorized and Non-Motorized Access to Picture Canyon. Page 50 4. Road Network within Picture Canyon. Page 55 5. Infrastructure within Picture Canyon, as of February 2017. Page 60 6. Observatory Mesa Natural Area land ownership and vicinity Page 69 map. 7. Drainages, wildlife waters, and spring locations within Page 72 Observatory Mesa Natural Area. 8. City and Forest Service infrastructure, including fences, cattle Page 77 guards, and tanks within Observatory Mesa Natural Area. 9. Pastures within the A-1 Mountain Grazing Allotment. Page 78 10. Forest Treatments on Observatory Mesa Natural Area, as of Page 80 August 2016. 11. Northern Goshawk nest stand and post-fledgling areas Page 85 identified in the Observatory Mesa Natural Area vicinity (including Forest Service and Lowell Observatory property). 12. Forest Service road designations (under the 2016 Travel Page 88 Management Rule) within Observatory Mesa Natural Area (Sections 12, 6, 8, 18) and adjacent Forest Service property. 13. Official trail system on Observatory Mesa, comprising non- Page 89 motorized access from the Mars Hill, Tunnel Springs, and Observatory Mesa trails. 14. Authorized trails included in the official Trail System Plan and Page 92 unauthorized, user-created trails on Observatory Mesa Natural Area, as identified in a field survey conducted in August 2016. 15. Road network on Observatory Mesa Natural Area, including Page 94 Forest Service and unauthorized roads. 16. Boundary fencing locations (both Forest Service and City of Page 99 Flagstaff) on Observatory Mesa Natural Area. 17. Infrastructure on Observatory Mesa Natural Area, as of August Page 100 2016. Page 4 of 105 List of Tables 1. Special status plant species identified within a 5-mile radius of Page 36 Picture Canyon. 2. Invasive and exotic species identified at the Preserve in 2009. Page 37 3. Special-status wildlife species identified within a 5-mile radius Page 41 of Picture Canyon. 4. Permitted and Prohibited Recreational Uses of Picture Canyon. Page 48 5. Perpetual, non-perpetual, and expired easements and leases Page 56 within Picture Canyon. 6. Priority Action Plan – Facility Development (Picture Canyon) Page 61 7. Priority Action Plan – Resource Management (Picture Canyon) Page 63 8. Priority Action Plan – Partnerships (Picture Canyon) Page 65 9. Sensitive plant species identified within a 5-mile radius of Page 73 Observatory Mesa Natural Area. 10. Invasive weeds of concern in Coconino County, as identified by Page 74 the San Francisco Peaks Weed Management Area, Coconino National Forest, and Coconino County, with hyperlinks to information about effective treatment and eradication. 11. Hunting regulations for Observatory Mesa Natural Area. Page 81 12. Sensitive wildlife species identified within 5-mile buffer of Page 82 Observatory Mesa Natural Area. 13. Permitted and Prohibited Recreational Uses (Observatory Mesa) Page 87 14. Perpetual, non-perpetual, and expired easements and leases Page 95 within Observatory Mesa Natural Area. 15. Priority Action Plan – Facility Development (Observatory Mesa) Page 101 16. Priority Action Plan – Resource Management (Observatory Page 103 Mesa) 17. Priority Action Plan – Partnerships (Observatory Mesa) Page 104 Page 5 of 105 Executive Summary The City of Flagstaff’s Open Space Program was founded in 1998 as an outgrowth of the Flagstaff Area Open Space and Greenways Plan. The Program exists to acquire and restore properties within the City of Flagstaff that have significant natural, cultural, and aesthetic properties in order to promote Flagstaff’s quality of life and provide opportunities for outdoor recreation and education within the City. In 2004, Flagstaff voters approved two separate open space bond initiatives, one dedicated to acquiring neighborhood open space and properties for the Flagstaff Urban Trail System and another bond dedicated to purchasing State Trust land on Observatory Mesa. These bond funds were leveraged against two separate Growing Smarter grants from Arizona State Parks to acquire 2,751 acres of legally-designated open space in 2012 and 2013 (Picture Canyon Natural and Cultural Preserve and Observatory Mesa Natural Area, respectively). As part of these acquisition processes, conservation easements were granted to Arizona State Parks to permanently preserve the conservation values of each of these properties (Appendices C and K). Picture Canyon Natural and Cultural Preserve is a 478-acre Preserve that was inhabited by the Northern Sinagua between approximately 700 and 1300 A.D. Archaeologists have identified 29 cultural sites within the Preserve, some of which have been listed with the Arizona State Museum and National Register of Historic Places. Approximately 100 separate petroglyph panels with nearly 800 individual petroglyph images are pecked into the Canyon’s walls and basalt boulders. Other significant cultural resources, including excavated pithouses and concentrations of pottery sherds are also located within the Preserve, making it an important cultural site for the northern Arizona region. Additionally, water supply from the adjacent Wildcat Reach Wastewater Treatment Plant supports a healthy riparian corridor along the Rio de Flag, providing habitat for over 180 bird species. Observatory Mesa Natural area is a 2,251-acre natural amenity for northern Arizona, providing important habitat for wildlife traversing between the San Francisco Peaks and Mogollon Rim and serving as a popular recreation corridor for the community. Its proximity to Lowell Observatory makes it an important area for protecting Flagstaff’s dark skies from light pollution. Additionally, due to the Mesa’s location within City limits and proximity to multiple neighborhoods, it serves as a popular recreation area and a “neighborwoods” for local residents. Picture Canyon and Observatory Mesa were purchased for the express purpose of preserving the unique conservation values associated with these properties, specifically their open space value, unique scenic beauty, native vegetative communities, diverse wildlife habitats, and Page 6 of 105 historical/cultural resources. The acquisition of these properties allows the City to protect these unique conservation values from potential threats, including encroachment from adjacent landowners, over-use of the property by the community, elevated fuel loads, illegal vehicle trespass, spread of invasive species, and development interests. As landowners, it is imperative that the City of Flagstaff manage legally-designated open space properties in a way that enhances natural resources and pubic experience on the property. Open Space Program staff developed this management plan in partnership with stakeholders to provide a framework for managing the natural, ecological, historical, and recreational resources on legally-designated open space properties to minimize conflict and degradation. The plan identifies general management policies in Chapter 2, and specific resource- and property-related management goals, policies, and actions in each subsequent chapter. The management prescriptions included herein apply to all lands managed by the Open Space Program. The plan is a dynamic document that will be updated and revised, as needed. The Priority Action Plans for each property will be updated biennially. Overall Management Goals: There are 5 overarching management goals for legally-designated open space properties: 1.