Category Archives: Fire

Sept Flowers, Tree History featured on Nature Walk

9/7/2009 Jim E. led a nature walk in the Forest Service inholding at Haystack Dr with Andre, Ellen, Judy, Karen D., Mary, Warren & Wynne on a partly sunny September afternoon. We started with an overview by Jim’s truck with a poster that included a table entitled “The World’s Oldest Known Trees,” and displays of annual sunflower, valerian root, and fetid marigold. Jim passed around the valerian root (the plant is called edible valerian or tobacco root) for us to smell and he read about its medicinal uses

Trees:  Jim showed the trees that he identified for Laurie Huckaby and John Popp, of the U.S. Forest Service,  as potentially very old trees from the 1500s. He pointed out these old trees may have survived due to protection by surrounding rocks.

10/16/09 Jim emailed additional information: “During the May 20th outing with Laurie Huckaby, the local USFS’s key researcher on the fire history of this northern region, she said the few old meadow trees belonged to that ~1500 A.D. cohort, a period of ample moisture. Indeed, she’d cored a large ponderosa in that cluster, untouched by beetles. The pith date: 1575, with her estimated real age of 1535. Yet she’s found 700-800 year-old ponderosas up in the Red Mountain area to the north. Roughly 200-year intervals occur between cohorts, established during off-year drought cycles. The oldest known ponderosa — 880-890 — was found in Utah. That, based on a table, ‘The World’s Oldest Known Trees’ in a USGS/USFS poster (no date), Colorado’s Ancient Trees.”

Mountain Pine beetle: We saw several pine beetle-infested trees that had been cut down within a cluster of infested trees. The wood was then stacked and wrapped in plastic by the U.S. Forest service.

Flowers: yarrow, blanket flower, gumweed, black-eyed susan, smooth white aster or Porter aster, valerian, yellow owl-clover, yellow sweet-clover, bottle gentian, tansy aster, golden aster,

Grasses: squirreltail, shortawn foxtail, June-grass, timothy.

GVM Nature Walk Nov 1,2008

Jim Erdman led an informative nature walk November 1, 2008, from 9-11am. We met at his house for an introduction to Colorado forest history. Jim set up a demonstration in his driveway, cleverly using his truck as a prop: the side door was used to display a poster on Colorado’s oldest trees and the truck bed held a dissecting scope, tree-ring cores, and trunk cross sections. Next we then set off on a hike to look at several sites Jim had selected. See photos below. Thanks Jim!