Sierra Club hikes
Saturday: Mount Bailey. Difficult 10-mile hike with a 3,130-foot elevation gain. Leader is George Lescher, 541-482-4477.

Aug. 8: Hyatt Lake to Wildcat Lookout. Moderate 8-mile hike. Leader is Cathy Edwards, 541-210-0204.

Aug. 15: Easy, 5-mile hike to Grizzly Peak. Leaders are Carol Walker, 541-488-8517, and Carol Ingelson, 541-245-6380.

Aug. 22: Moderate 7-mile hike on Rogue River Trail East, Grave Creek to Whiskey Creek Cabin. Leader is Joel Peterson, joelpeterson@charter.net or 541-955-9224.

Sept. 5: Moderate, 8-mile hike on Mount Ashland (downhill the entire way). Leaders are Carol Walker, 541-488-8517, and Carol Ingelson, 541-245-6380.

Lithia Park Nature Walks
Naturalists from Ashland Parks and Recreation lead free walks through Lithia Park on Fridays, Sundays and Wednesdays through Sept. 30, and Saturdays in July and August. Topics such as trees, flowers, birds, climate, water and geology are discussed. Dress for weather and meet at 10 a.m. at the park's entrance. Call 541-552-2266 for details.

Native Plant Society
Saturday: Bigelow Lake is a highlight of Oregon Caves National Monument and is one of the few easy-access, nearly pristine, cirque lakes in the Klamath-Siskiyous. Wildflowers are likely to be in peak bloom due to the the year's late spring rains. Meet at the Oregon Caves parking lot at 10:30 a.m. Carpools leave Grants Pass Walmart/Taco Bell parking lot at 9 a.m. or Ashland Shop ‘N' Kart parking lot at 8 a.m. For more information contact Sasha Joachims at 541-661-3492 or Sasharain@clearwire.net. Hike leader is John Roth. Non-members welcome. All hikes are free but may involve carpooling. Bring water and lunch.

Aug. 8: This trip to Alex Hole and the Siskiyou Crest will involve a long drive and short hikes. Anticipated highlights are late season Siskiyou Crest flora, beautiful vistas, quaking aspen and, for those willing to scramble, a glimpse of sedum divergens. Meet at Star Ranger Station (seven miles south of Ruch on Upper Applegate Road) at 9 a.m. Car pools leave Grant Pass Walmart/Taco Bell parking lot and Ashland Shop ‘N' Kart parking lot at 8 a.m. Leader is Barbara Mumblo, 541-899-3855. Non-members welcome. All hikes are free but may involve carpooling. Bring water and lunch.

Aug. 15: Hike to Squaw Meadow on Mount Shasta to look at subalpine flowers, including Pasque flower, partridge foot, cobwebby paintbrush and mountain jewelflower, and to savor the heady fragrance of dirty socks (eriogonum pyrolifolium). Moderate three-mile, round-trip hike; 600-foot elevation gain. Return to Ashland by 5 p.m. Meet 8:30 a.m. behind Oil Stop on Ashland Street, just west of the Ashland Bi-Mart/Shop ‘N' Kart parking lot. Leader is Alex Maksymowicz, 541-482-1964. All hikes are free but may involve carpooling. Bring water and lunch.

Oregon Chautauqua Program: Obsidian
Aug. 7: Archaeologist Dennis Jenkins will discuss the invaluable information about our culture stored within nature in “Obsidian: History through the Volcanic Glass Window.” The free program, hosted by the Siskiyou Field Institute, will be held at 7 p.m. at the Deer Creek Center, 1241 Illinois River Road, Selma.
Obsidian, a natural glass produced by many volcanoes in Oregon, contains a unique chemical signature that enables archaeologists to trace artifacts back to the volcano of origin. Obsidian is also an unstable mineral that begins absorbing molecular water soon after a fresh surface is exposed to the atmosphere, a process that produces a detectable rind that thickens at a predictable rate under various site conditions, producing a “hydration clock” that tells the age of each artifact and flake.
Obsidian artifacts yield a treasure-trove of information about prehistoric lifeways and the development of sociopolitical areas in central Oregon across 15,000 years of prehistory. Jenkins presents a look at the trail of information left by this beautiful volcanic glass.
The presentation is an Oregon Chautauqua from the Oregon Council for the Humanities. More information about OCH's programs and publications, which include Oregon Chautauqua, Humanity in Perspective and Oregon Humanities magazine, can be found at www.oregonhum.org. For more information, call 541-597-8530.

Saturday: Klamath Bird Observatory ornithologist Frank Lospalluto will lead a free half-day outing to Mount Ashland. Climbing from the valley to nearly the top of the 7,532 foot mountain, the group will visit birding sites at a variety of elevations. Sites include parts of the Pacific Crest Trail. Meet at 8 a.m. at Northwest Nature Shop, 154 Oak St., Ashland. There will be a limited number of binoculars and field guides available to loan, so bring binoculars if you have them. Space is limited. Call 541-482-3241 to reserve a space.

Aug. 8: Birdwalk to Mount Ashland. Group will look and listen for upper elevation birds, such as green-tailed towhee, mountain quail, purple and Cassin's finch, band-tailed pigeon, white-headed woodpecker, evening grosbeak, and Cooper's hawk, and possibly northern goshawk, and hermit, black-throated gray and Townsend's warblers. Bring a lunch if you'd like to eat in the picnic area. Meet at 8 a.m. at Wild Birds Unlimited, 712 Crater Lake Ave., Medford. Leader is Vince Zauskey, Klamath Bird Observatory volunteer and member. To register, call 541-770-1104.

Callahan's Challenge Hill Climb Time Trial Series
Aug. 8 and 22: The first race of this two-race series will start at Project A on Highway 66 and climb to Callahan's Lodge. The second race two weeks later will start from Callahan's and finish at the Mount Ashland Ski Area. Both races start at 9 a.m. Cost is $15 each or $25 for both. Oregon Bicycle Racing Association license is required, and may be purchased on race day. A one-day license costs $5. For details contact race director Amy Warner at 541-601-9663 or amyw@osfashland.org.

Siskiyou Velo Club
Aug. 8: Ice Cream Ride. Moderate pace, 40 to 50 miles. Meet at 9 a.m. at 2200 Hull Road in Medford. Call 541-245-8598 for information.
Every Saturday: Siskiyou Velo Club organizes two rides. A mellow 20-miler begins at 10 a.m. Starting locations and routes vary. Ride leader is Phil Gagnon: 541-488-4289. The second ride, led by Alex Hayes (call 541-857-0819), covers 20-plus miles at race pace. Starts at Medford Cycle Sport at 10 a.m.
Every Sunday: Training ride begins at 9 a.m. along the bike path behind Bad Ass Coffee Co. in Medford. Race pace, 20-plus miles. Ride leader is Glen Gann, 541-779-6986.
Every Monday: A 25-mile ride begins at 9:30 a.m. at Colver Park in Phoenix and journeys to Jacksonville. Gently rolling terrain, brisk pace. No ride leader.
Every Tuesday: A moderate, 25-mile ride begins at 10:30 a.m. at the Public Library in Jacksonville. Ride leader is Jack Buster, 541-664-2870
Every Wednesday: A 25- to 40-mile ride begins at 10 a.m. at Rogue Valley Roasting Co. in Ashland. Moderate terrain, brisk pace. No ride leader.

Mountain bike rides
Every Tuesday, Grants Pass: Bike Kraft hosts a weekly women's mountain bike ride that leaves at 6 p.m. from its shop in Grants Pass, 1448 Williams Hwy. The rides last about two hours and accommodate many skill levels. Contact Richard Amneus at 541-476-4935, or e-mail bikekraft@atiinternet.com.
Every Wednesday, John's Peak, Jacksonville: Sponsored by Cycle Analysis, these rides are for all ages and abilities and are group-oriented. They begin at 6:30 p.m. from Cycle Analysis in Jacksonville and include the John's Peak trail system. Every ride ends with free refreshments supplied by Cycle Analysis. Helmets are required. Contact Jana Jenson at 541-899-9190, or e-mail cyclea@internetcds.com. More information is available at the Southern Oregon Mountain Bike Association's Web site at www.somba.org.
Every Wednesday, Grants Pass: Bike Kraft hosts a weekly ride that meets and leaves at 6 p.m. from its shop, 1448 Williams Hwy. The rides last about two hours and accommodate many skill levels. Contact Richard Amneus at 541-476-4935, or e-mail bikekraft@atiinternet.com.
Every Thursday, Ashland: Cycle Sport's crew meets at the plaza at 6:30 p.m. Riders of all abilities welcome, but be able to climb for a few miles to get to the trails. The group will wait at intersections and there are often many outs for people who are time-pressed or gravity challenged. Single-track descents are of intermediate ability. Contact Thom Kneeland at 541-476-4935, or e-mail unoveloce@hotmail.com.
Every Thursday, Grants Pass: Don's Bike Center has a ride that starts at its shop at 5:30 p.m. Rides last about two hours and are tailored to intermediate to advanced riders. Don's is at 211 SW G St. Contact Don or Shawn at 541-471-3494.
Every Saturday, Grants Pass: The folks from Don's Bike Center meet at the Cathedral hills trailhead on Espy Road at 7:30 a.m. for two hours of riding. Contact Don or Shawn at 541-471-3494.

Mount Ashland Hillclimb Run
Saturday: This rugged run up to the Mt. Ashland summit starts at Winburn Way near City Hall, a distance of 13 miles with an elevation gain of 5,600 feet. The race is limited to 250 entrants. Registration through July 30 costs $20. Race-day costs $30. For information call 541-488-5340, e-mail info@mtashlandrun.com or go to www.mtashlandrun.com.

Crater Lake Rim Runs
Aug 8: Registration is closed for this year's marathon, half-marathon and 6.7-mile race.

North Mountain Park Family Fun Run/Walk
Aug. 21: A 3K “Shoes Optional” Family Fun/Walk starts at 8 p.m. under the lights. The event is being put on by Wilder Schaaf and Cord Walsh, both runners at Ashland High School, as part of their senior project. Participants are encouraged to pre-register for the event, which costs $15 and includes a T-shirt. Registration forms are available at Rogue Valley Runners in Ashland or online at www.ggs.net/familyfunwalk.pdf. All proceeds benefit the Ashland High School cross-country team. Pre-registration deadline is Aug. 11.