Name of Community: Cave Rock/Skyland
Date: July, 2004
Project Title: Cave Rock/Skyland Unit 1 - Thinning and Brush Removal
Vegetative Fuel and Topography: The tree stand is characterized by a second growth stand of Jeffrey pine with some white fir, incense cedar, and a heavy brush understory of manzanita, tobacco brush, whitethorn, huckleberry oak, bitterbrush, and rabbitbrush. The tree density varies from 80 to 400 sq ft BA/AC.
This project ranks as the #12 priority for the TDFPD.
Around the northern portion of the Cave Rock / Skyland Community. See Figure 11-2.
Thin from below, removing smaller trees and leaving larger ones to achieve the desired stocking rate of 80 to 100 square feet of basal area per acre. Remove brush and small trees from beneath the larger trees. Break up the continuity of the brush in open areas by thinning to two times the height of the trees. Remove dead standing trees and down course woody fuels. Remove slash from site or pile and burn. Ground based systems can treat most of the project area south of Lincoln Creek. North of Lincoln Creek requires aerial systems or cut, pile, and burn by hand.
Thin forest stand from below, removing smaller trees and leaving larger ones to achieve the desired stocking rate of 80 to 100 square feet of basal area per acre. Remove trees heavily infected with dwarf mistletoe.
*Prescribed fire could be used to reduce the brush understory, and desired where feasible to return fire to the landscape. It should only be applied in areas after thinning and slash pile burning are complete to maintain fire control.
The project will significantly reduce the chances of a ground fire laddering into the tree crowns. A crown fire burning into the treated area should drop to the ground. If a prescribed fire is run through after treatment, it would reduce the chances of ground or a crown fire moving through the area.
If all of the recommendations in this report are implemented, there is still no guarantee that a devastating wildfire will not occur in the area. However, community awareness and individual attention to fuels management on private property and fuel reduction on state, federal, and county property will help to achieve the highest level of wildfire safety possible.
Environmental compliance measures must be implemented before project initiation. Stream Environment Zones are located in the project area and must be protected, employing appropriate TRPA mitigation measures.
Some threatened and endangered species exist in the Tahoe Basin. Appropriate avoidance and mitigation measures should be employed during project implementation.
Compliance with cultural resource protection may also be necessary. Check with TRPA and the NVSHPO to ensure cultural resources are protected.
Rehabilitate and revegetated any roads or equipment landings used during the project.
Mechanical: May - December
Hand: April--December
Mechanical harvesting could be completed in one operational season. The area north of Lincoln Creek could take three years to complete by hand.
Cable yarding is recommended, however, no costs for cable yarding were available. The costs below are a minimum based on currently accepted methods in the Tahoe Basin.
Hand cut, pile, and burn | $2,000 / acre X 234 acres | |
Prescribed fire within 5 years | $1,200 / acre X 234 acres | |
Total Cost | $ 748,800 |
Thinning or prescribed fire at 10 year intervals to control growth of brush and young trees.
Figure 11-2Proposed Prescription Area Cave Rock / Skyland Unit 1 |